Standard 5ft 3 Prong AC Power Cord Cable
4.7Editor score
Five-foot flexible cable
Three-prong wall connection
Heavy-duty molded construction
In this guide
An ASUS monitor power cord replacement can restore a display that no longer receives reliable power, but choosing the wrong type may cause an incompatible connection or insufficient output. The most important details are voltage, wattage, connector dimensions, and the exact monitor model. A broad compatibility claim alone is not enough to make a safe match.
This guide compares ten replacement cords and power adapters using the specifications provided for each product. It covers standard wall-power cables, 19-volt AC adapters, and 65-watt replacements, with particular attention to connector size, supported ASUS families, included cables, protection features, and installation practicality.
Each review explains the best uses for its featured product while noting where its compatibility does not apply. The top selections represent the strongest overall option, a practical budget cable, and a feature-rich replacement adapter. Product availability and prices can change, so confirm the specifications and current cost before ordering.
Top 3 Picks for Best ASUS Monitor Power Cord Replacement
19V Charger Compatible with Asus Monitor Power Cord VG248QG VG278 VG245
4.8Editor score
Broad ASUS model compatibility
19V 90W maximum output
5 by 2.5mm connector
HHZ 65W 5.5 by 2.5mm Monitor Charger
4.8Editor score
19V 65W adapter output
Extensive ASUS model coverage
Built-in protection circuitry
Top 10 Best ASUS Monitor Power Cord Replacement in 2026 Compared
The comparison below separates true monitor power adapters from standard AC wall cords and highlights each product's output, connector, cable arrangement, and primary advantages.
ProductsSpecificationsEditor scorePrice
Editor's Choice
19V 90W ASUS Charger
19V maximum output
90W maximum power
5 by 2.5mm tip
Broad ASUS coverage
4.8Editor score
Editor's Choice
Standard 3-Prong AC Cord
Five-foot cable
125V rated input
10-amp capacity
18 AWG wire
4.7Editor score
Best Premium
19V 65W ASUS Adapter
19V 65W output
5.5 by 2.5mm tip
100-240V input
US cord included
4.6Editor score
HHZ 65W ASUS Charger
19V 65W output
5.5 by 2.5mm tip
100-240V input
Protection circuitry
4.8Editor score
19V 65W Nine-Foot Adapter
19V 65W output
5.5 by 2.5mm tip
Nine-foot cable
Six-layer protection
4.4Editor score
Zaidtek 65W ASUS Adapter
19V 65W output
5.5 by 2.5mm tip
100-240V input
AC cable included
4.6Editor score
19V 65W ASUS Supply
19V 65W output
5.5 by 2.5mm tip
100-240V input
Wide model support
4.5Editor score
HSXIRQA 19V Adapter
19V 65W output
5.5 by 2.5mm tip
100-240V input
Adapter and cord
4.6Editor score
19V 65W HP ASUS Adapter
19V 65W output
5.5 by 2.5mm tip
100-240V input
US two-pin cord
4.4Editor score
Eight-Foot 65W ASUS Charger
19V 65W output
5.5 by 2.5mm tip
Eight-foot cable
CE FCC RoHS
4.6Editor score
1. 19V ASUS Monitor Charger – Best Overall Replacement
19V ASUS Monitor Charger
19V maximum output
90W maximum rating
5 by 2.5mm connector
100-240V input
This 19V charger earns the Editor's Choice position by combining a high 4.8 rating with unusually broad ASUS monitor compatibility. It is designed to replace the external power supply on numerous VX, VG, VP, PG, VC, MS, ML, MX, and LS models. Rather than limiting itself to one popular family, it covers many of the 19-volt ASUS displays commonly encountered in home, office, and gaming setups.
Pros
- Exceptionally broad model list
- Handles higher-power monitors
- Supports many common series
- Strong 4.8 customer rating
- Useful 19V output range
Cons
- Requires exact connector verification
- Some specifications are ambiguous
- Not intended for 12V systems
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The main attraction is its stated 90-watt maximum output, which gives it more headroom than a typical 65-watt replacement. The specification also indicates compatibility with lower current requirements, while the listed 5 by 2.5mm connector matches the round power connection used by many older and midrange ASUS monitors. Its compatibility list includes the VG248QG, several VG278 variants, VG245 models, VX series displays, and numerous PG and MX models.
The tradeoff is that the product description contains an unusual current notation that is difficult to interpret at a glance. Buyers should not rely on the title or broad model list alone. They should inspect the original adapter, verify that it supplies 19 volts, and measure the center pin before connecting it. The product is designed for round-tip monitor power inputs, not USB-C, and it does not cover displays that require 12 volts.
This is the strongest recommendation for someone who wants one flexible replacement across many compatible 19V ASUS monitors. It is particularly compelling when the original adapter has been lost and the monitor's exact model number is known. Confirm the connector and voltage first, then check that the replacement's current and wattage are sufficient for the display.
Broad Compatibility Across ASUS Families
The long compatibility list covers several generations of ASUS monitors, including gaming, widescreen, and standard LCD models. This breadth can be valuable in multi-monitor offices or households where more than one ASUS display uses the same 19-volt setup.
Higher Output Provides Useful Headroom
A stated maximum of 90 watts offers more capacity than the common 65-watt replacement. That headroom can be reassuring for a compatible display, although the adapter should still be matched to the voltage and connector required by the monitor.
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2. Standard 3-Prong AC Cord – Best Budget Cable
Standard 3-Prong AC Cord
Five-foot cable length
10-amp rating
125-volt rating
18 AWG wire
This standard three-prong AC power cord is the budget choice for replacing a damaged wall-side cable rather than the monitor's brick-style power adapter. It supports 10 amps at 125 volts, uses heavy-duty 18 AWG wire, and has a fully molded design. The five-foot length provides enough reach for most desks while remaining easy to route behind a monitor stand.
Pros
- Low-cost simple replacement
- Five-foot flexible reach
- Fully molded construction
- Works with three-pin devices
- Strong 4.7 customer rating
Cons
- Does not replace AC adapters
- Only reaches wall outlets
- Not suitable for USB-C
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Its strongest advantage is simplicity. The listing identifies compatibility with monitors, computers, televisions, printers, radios, and other electronics that use a standard three-pin connection. It may also work with an ASUS monitor's detachable AC input when that input accepts a three-prong plug. This makes it useful for repairing a frayed cable without replacing a more complex power supply.
This product does not connect directly to the round DC input found on many ASUS displays. If the monitor uses an external 19-volt adapter, this cord can replace only the wall-to-adapter segment if the adapter itself has a three-prong plug. It cannot replace the low-voltage DC cable, and it is entirely unsuitable for a monitor powered through USB-C.
Choose it when the fault is limited to a standard wall cord and the monitor accepts that type of connection. For owners seeking a complete power-supply replacement or working with a round 5.5 by 2.5mm monitor input, one of the 19V adapter options is the more appropriate purchase.
A Practical Fix for Standard Wall Connections
If the original three-pin cable is split, crushed, or missing, this replacement addresses the problem without adding an unnecessary adapter. Its molded construction is designed for repeated handling and flexible routing around furniture.
Know When a Cable Is Not an Adapter
A standard AC cord does not convert wall power into the 19-volt DC output required by many ASUS monitors. Check the shape and purpose of the original connection before ordering so the replacement matches the failed component.
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3. 19V 65W ASUS Adapter – Clear 5.5mm Fit
19V 65W ASUS Adapter
19V 3.42A output
65W maximum power
5.5 by 2.5mm tip
US power cord included
This replacement adapter provides 19 volts at up to 3.42 amps and 65 watts, making it a common match for ASUS monitors that originally used a 40-watt or 45-watt supply. Its most useful feature is the clearly stated 5.5 by 2.5mm round connector. That specificity makes it easier to verify than a listing that provides only a generic tip description.
Pros
- Clearly states connector dimensions
- Supports several ASUS series
- Includes US wall cord
- Works below maximum capacity
- Documents incompatible tip sizes
Cons
- Not suitable for 12V monitors
- Excludes smaller 4.0mm tips
- Higher models need more power
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The adapter supports widely used VS, VG, VX, MX, and ROG Swift models. Compatible examples include the VS248H-P, VS247H-P, VS239H-P, VS228H-P, VG248QE, VG245H, VG278Q, VG258Q, PG278Q, PG279Q, PG258Q, PG278QR, MX279H, MX259H, MX239H, VX238H, VX228H, VX248H, and VX279Q. The package includes the adapter and a US standard power cord.
It deliberately excludes several newer or specialized configurations. Displays requiring 12 volts will not work with it, and neither will monitors using the smaller 4.0mm tip. The 65-watt ceiling also makes it less suitable for a monitor whose original adapter required more power. Its global 100-240-volt input is useful, but connector and wattage still need to match.
This is a solid general replacement for owners of the listed 19V ASUS displays, especially when the original supply has failed but the DC plug is still intact. It is especially attractive because the listing both names compatible series and explicitly identifies the two connector or voltage formats it cannot support.
Explicit Connector Guidance Reduces Guesswork
The stated 5.5 by 2.5mm dimensions give buyers a concrete way to compare the replacement with the original monitor input. The warning against 4.0mm tips is equally useful because the small difference can prevent a secure fit.
One Adapter Covers Many Generations
Compatibility extends from compact VS and VX displays to popular VG gaming monitors and ROG Swift models. This broad family coverage makes the adapter useful for anyone maintaining more than one compatible ASUS screen.
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4. HHZ 65W ASUS Charger – Best Premium Protection
HHZ 65W ASUS Charger
19V 3.42A output
65W maximum capacity
5.5 by 2.5mm connector
Global 100-240V input
The HHZ 65W charger combines a 4.8 rating with extensive compatibility information, making it a strong premium choice. It outputs 19 volts at up to 3.42 amps for up to 65 watts and uses a 5.5 by 2.5mm round connector. It is intended to replace lower-rated 40-watt and 33-watt ASUS supplies while remaining below the maximum capacity of the adapter itself.
Pros
- Highest-rated top selection
- Detailed model compatibility
- Named ASUS part numbers
- Multiple protection functions
- Supports lower wattages
Cons
- Requires 5.5mm connector
- Excludes 12V and 4mm tips
- 65W output has limits
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Unlike listings that mention only a handful of examples, this one groups compatibility by series. It covers VS models such as VS248H-P, VS247H-P, VS239H-P, and VS228H-P; VG models including VG248QE, VG245H, VG278Q, and VG258Q; ROG Swift displays such as PG278Q, PG279Q, PG258Q, and PG278QR; and numerous MX, VX, ML, MS, and LS models.
The listing also names common original part numbers, including ADP-65GD B, ADP-40KD BB, PA-1650-78, EXA1203YH, EXA1204YH, 0A001-00041500, and 0A001-00330200. That detail can speed up verification if the old adapter label is no longer readable. Built-in protection circuitry is stated to address short circuits, over-voltage, over-current, and internal overheating.
It remains a specialized 19V replacement rather than a universal monitor power supply. The connector must be 5.5 by 2.5mm, and the original adapter must not require 12 volts, a 4.0mm tip, or more than 65 watts. For those conditions, this product offers the best combination of rating, model detail, and stated safeguards.
Named Part Numbers Simplify Verification
Finding an old adapter part number is much easier than identifying a monitor family from its model code alone. The listed ADP, EXA, PA, and 0A001 references provide useful alternate ways to confirm a match.
Layered Protection Supports Daily Use
The stated safeguards cover common electrical risks such as over-voltage, over-current, short circuits, and overheating. These protections are especially relevant in a replacement adapter connected to a display that may remain powered for many hours.
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5. 19V Nine-Foot ASUS Adapter – Best Extended Cable Reach
19V Nine-Foot ASUS Adapter
19V 65W output
5.5 by 2.5mm connector
Nine-foot total reach
Six protection functions
This adapter stands out for its extended nine-foot cable and 19-volt, 65-watt output. It includes a four-foot AC power cable and a five-foot DC cable, offering more placement flexibility than shorter replacements. That makes it especially appealing when the monitor is positioned away from the nearest wall outlet or mounted on a desk with a less direct cable path.
Pros
- Long nine-foot cable
- Wide model compatibility
- Supports multiple current levels
- Includes AC and DC cables
- Six stated safety protections
Cons
- Lower rating than leaders
- Connector excludes some models
- Large compatibility list
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The compatibility list spans numerous ASUS lines, including MX, MS, MZ, VG, VX, VZ, VA, PG, VP, MG, ML, and related gaming or widescreen families. Its output can support devices drawing from 0.5 amps through 3.42 amps at 19 volts, as long as the total does not exceed 65 watts. The DC connector is specified as 5.5 by 2.5mm and is also listed as compatible with a 5.5 by 2.1mm connection.
Its list is extensive enough that buyers should work from the actual connector and voltage rather than rely solely on a model number. The stated protection includes overcurrent, overcharge, overtemperature, short-circuit, overvoltage, and surge protection. That is a comprehensive safety claim, though it cannot overcome an incorrect connector or an unsupported power requirement.
Choose this product when cable reach matters as much as electrical compatibility and the monitor uses a compatible 19V setup. It is a sensible alternative for wall-mounted screens, larger desks, and gaming stations where a short adapter would create an awkward or strained route.
Extended Reach Simplifies Placement
The combination of AC and DC cable lengths allows the wall outlet and monitor to sit farther apart than with a compact power brick. This can reduce cable tension and make wall-mounted installations more practical.
Flexible Output Range
The listed current range allows the adapter to serve many lower-demand 19V monitors while retaining a 65-watt maximum. As always, the monitor's original output label remains the authoritative guide.
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6. Zaidtek 65W ASUS Adapter – Broad Model Support
Zaidtek 65W ASUS Adapter
19V 3.42A output
65W maximum power
5.5 by 2.5mm connector
100-240V input
This Zaidtek power supply delivers 19 volts at up to 3.42 amps and 65 watts through a 5.5 by 2.5mm connector. It supports 19-volt current ratings of 1.5, 2.1, 2.53, and 3 amps as well, giving it flexibility across several ASUS monitor power requirements. Its 100-240-volt input makes it suitable for use with compatible outlets in many regions.
Pros
- Extensive ASUS series coverage
- Supports common lower currents
- Global input voltage
- Includes AC power cable
- Strong 4.6 customer rating
Cons
- Connector and voltage restrictions
- No explicit safety feature list
- Adapter format not universal
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The model coverage is the standout feature. The listing includes classic VX, MS, ML, LS, VC, MX, and VG families, along with ROG Swift models such as PG278Q and PG279Q. It also references VG32VQ, VG27AQ, VG278QR, VG278QE, VG278QF, VG259QM, VP279HE, and numerous other ASUS LCD and LED displays.
Compatibility also extends to original part numbers including ADP-40KD BB, ADP-65GD B, EXA1203YH, EXA1204YH, PA-1650-78, several 04G268 series numbers, and multiple 0A001 identifiers. The package includes one AC adapter and one AC power cable, which is convenient for immediate setup.
The main limitation is that this remains a 19-volt, round-tip replacement. It will not suit a monitor requiring 12 volts or a USB-C input, and its 65-watt ceiling may be insufficient for a compatible connector but higher-wattage display. Buyers should verify those three points before ordering.
Useful for Mixed ASUS Installations
The combination of multiple series and original part numbers gives buyers several ways to establish compatibility. It can be a practical maintenance option for offices with several ASUS displays from different generations.
Complete Initial Setup
Including an AC power cable means buyers do not need to source a separate wall lead for the adapter. The included cord should still be checked for physical damage and used with a properly grounded outlet where appropriate.
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7. 19V 65W ASUS Supply – Versatile Daily Replacement
19V 65W ASUS Supply
19V 3.42A output
65W maximum power
5.5 by 2.5mm connector
100-240V input
This 19V power supply offers a familiar 65-watt configuration and broad support for ASUS LCD and LED monitors. It produces up to 3.42 amps and is also listed as compatible with 19V outputs of 1.5, 2.1, 2.53, and 3 amps. The 5.5 by 2.5mm connector is one of the most common round power tips used with compatible ASUS displays.
Pros
- Supports many ASUS series
- Familiar 65W output
- Multiple lower-current options
- Global input compatibility
- Useful replacement format
Cons
- No included cable detail
- Not universal for all ASUS monitors
- Connector still requires checking
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Its compatibility lists cover VX, MS, ML, LS, VC, MX, VG, VP, VA, and ROG Swift families. Named examples include VX228H, VX238H, VX248H, VX279Q, MS226H, MS228H, MS238H, MS246H, ML228H, ML238H, ML239H, ML248H, LS246H, LS248H, MX239H, MX279H, VG245Q, VG278Q, VG27AQ, VG278QR, and VG32VQ.
The adapter also references original supply part numbers such as ADP-40KD BB, ADP-65GD B, EXA1203YH, EXA1204YH, PA-1650-78, and multiple 04G268 and 0A001 codes. This is helpful when the monitor's model label has become difficult to read. It accepts a worldwide 100-240-volt input at 50 or 60 hertz.
Its weakness is that the supplied information does not clearly describe what wall cable, if any, is included. It also does not solve compatibility for 12-volt, USB-C, 4.0mm-tip, or above-65-watt systems. Check the complete package and monitor specifications before purchase.
A Conventional Adapter for Common Displays
The 19V, 65W format and 5.5 by 2.5mm tip align with a large number of traditional ASUS monitors. It is a sensible baseline replacement for compatible office and gaming displays that used the original ADP or EXA-style supplies.
Part Numbers Aid Model Identification
Original adapter numbers can be more useful than a monitor's commercial model name when determining compatibility. The listed references give buyers several alternatives for checking an older replacement.
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8. HSXIRQA 19V Adapter – Broad Curved-Model Support
HSXIRQA 19V Adapter
19V 3.42A output
65W maximum power
5.5 by 2.5mm connector
Adapter and cord included
This HSXIRQA adapter supplies 19 volts and up to 3.42 amps, with a maximum output of 65 watts. Its broad list stretches from 19.5-inch displays to 34-inch models and includes several ASUS Designo curved monitors. The 5.5 by 2.5mm connector and stated compatibility with lower 45-watt equipment make it a plausible option for many conventional ASUS screens.
Pros
- Wide ASUS compatibility
- Supports curved monitors
- Fits many screen sizes
- Includes AC cord
- States protection features
Cons
- Not for higher-power devices
- Round-tip connector required
- Some protection wording unusual
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Supported models include MX27AQ, MX27UC, MX27UQ, MX279H, MZ279H, MZ27AQ, VC279H, VL278H, VL279HE, VX279Q, VX279H, VZ279N, VG278Q, VG278QR, MX259H, VG258Q, VG258QR, VX249N, VZ249H, VZ249Q, VX24AH, MS246H, MS248H, LS246H, LS248H, VG245H, VG245Q, ML248H, ML249H, VX248H, VX248N, VG248QG, and several others.
The package includes a power adapter and power cord. Its listed safeguards cover overcurrent, short circuits, and overheating, while the housing is described as heat resistant, flame retardant, and fire resistant. Buyers should nevertheless focus on the actual electrical requirements, because no safety language can compensate for an improper tip or an undersized power rating.
This adapter is best for a compatible 19V monitor up to 65 watts, particularly where curved ASUS models are involved. It does not support devices above 65 watts, and it should not be selected for a 12-volt, 4.0mm-tip, or USB-C display. The listed 4.6 rating reflects solid buyer feedback while still leaving room to verify fit before ordering.
Coverage Extends to Curved Displays
The compatibility list includes several 27-inch and larger ASUS models, including Designo entries. This expands its usefulness for owners of curved monitors that use the same 19V round-tip arrangement.
Heat and Circuit Protection
Stated overcurrent, short-circuit, and overheating safeguards address several of the main electrical risks in a continuously operating monitor supply. Confirming the connector and wattage before connection remains essential.
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9. 19V HP ASUS Adapter – Best Cross-Brand Option
19V HP ASUS Adapter
19V 3.42A output
65W maximum power
5.5 by 2.5mm connector
US two-pin cord
This adapter is distinctive because it supports both selected ASUS and HP monitors. It outputs 19 volts at up to 3.42 amps for a maximum of 65 watts and uses a 5.5 by 2.5mm connector. That makes it a practical option for a mixed setup in which compatible ASUS and HP displays share the same round-tip power arrangement.
Pros
- Supports ASUS and HP monitors
- Compact multi-use design
- Clear port exclusions
- Worldwide input range
- Includes US wall cord
Cons
- Smaller ASUS compatibility list
- Excludes larger HP connectors
- Not for USB-C power
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The ASUS list includes VX238H, VX238H-W, VX228, VX228H, VX248, VX248H, LS246H, and LS248H. The HP side covers 20-inch through 27-inch IPS models including 22cwa, 23xi, 23bw, 22bw, 23er, 23es, 24ea, 25er, 27xi, 27bw, 27er, 27es, and 27xw. The included wall cable has a US two-pin plug.
The product description clearly notes that it is not suitable for 6.5 by 4.4mm or USB-C monitor ports. It also asks buyers to verify that the original adapter outputs 19 volts. Those limitations make it less expansive than several other replacements in this guide, but the cross-brand support can be valuable for a mixed hardware environment.
Choose this adapter when an ASUS or listed HP monitor uses a 19V, 5.5 by 2.5mm connection and a 65-watt or lower supply. Its stated over-voltage, over-current, and short-circuit protections add confidence, while the compact format is useful as a home, office, or travel spare.
One Adapter for Two Monitor Brands
Supporting selected ASUS and HP models is useful for users who want a shared spare or a simpler purchasing standard across both brands. The overlap must still be confirmed through the connector and original output label.
Explicit Exclusions Prevent Misordering
Clear warnings about 6.5 by 4.4mm and USB-C ports help buyers distinguish this adapter from incompatible monitor power solutions. Other monitor voltages may also differ, so 19V should be verified.
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10. Eight-Foot 65W ASUS Charger – Best Gaming-Style Replacement
Eight-Foot 65W ASUS Charger
19V 3.42A output
65W maximum power
5.5 by 2.5mm connector
Eight-foot cable
This eight-foot charger delivers 19 volts, 3.42 amps, and up to 65 watts through a 5.5 by 2.5mm connector. The longer cable offers practical flexibility for gaming desks, wall-mounted displays, and setups where the outlet is not directly behind the monitor. Its input accepts 100 to 240 volts at 50 or 60 hertz.
Pros
- Long flexible cable
- Extensive gaming compatibility
- Multiple protection functions
- CE FCC RoHS listed
- 100-240V input
Cons
- Large claimed lifespan figure
- Requires compatible round tip
- 65W maximum output
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The ASUS compatibility list is extensive. It covers TUF and VG models such as VX228D, VX228N, VX229N, VX238N, VX238T, VX248H, VX279H, VX279N, VX279Q, VG245, VG245Q, VG245H, VG248, VG248QG, VG258Q, VG258QR, VG258QM, VG259Q, VG275Q, VG278Q, VG278QR, VG278QE, VG278QF, VG279Q, VP279HE, VG289Q, VG27AQ, VG27BQ, VG27VQ, VG32VQ, and other models.
It also lists ROG Swift PG278Q, PG279Q, VC239H, VC239N, VC279H, VC279N, MX259H, VA27EHE, and related gaming displays. The listing states CE, FCC, and RoHS certification, along with over-voltage, over-current, and short-circuit protection. It also describes an ABS and PC flame-retardant case and a pure copper wire core.
The unusual claim of a lifespan exceeding ten years should not be treated as a guarantee because actual longevity depends on use, heat, cable handling, and power conditions. Within that context, the product remains a strong choice for a compatible 19V gaming monitor that needs more cable reach.
Cable Reach for Gaming Setups
Eight feet provides room to position a monitor without pulling the connector sideways or crowding the wall outlet. It also gives users the option to route the cable around a desk, stand, or wall-mounted bracket.
Certification and Protection Details
Stated CE, FCC, and RoHS credentials create a clearer compliance picture than listings that mention no certification. Over-voltage, over-current, and short-circuit protection add practical safeguards for routine operation.
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Buying Guide – How to Choose the Best ASUS Monitor Power Cord Replacement
Choosing a monitor power replacement begins with identifying the failed component and matching the monitor's original electrical specifications. The following factors help separate a simple wall cable from a full AC-to-DC power adapter.
Determine What Needs Replacing
A monitor may use a detachable three-prong AC cord, a two-prong wall cord feeding a power brick, a round DC cable from a brick to the display, or an integrated power supply. Inspect the original arrangement before shopping. If only the wall lead is damaged, the standard three-prong cable may be sufficient. If the adapter box is missing, damaged, or supplying the wrong output, a 19-volt replacement adapter is the relevant choice.
Confirm Voltage and Wattage
Read the output label on the original adapter and compare it with the replacement. Most of the round-tip adapters in this guide output 19 volts, but they do not all cover every monitor. The original label should also identify the required current or wattage. A replacement can have a higher maximum rating than the monitor draws, but it must not have a lower capacity than the original requirement.
Measure the Connector Size
The diameter of the outer sleeve and the diameter of the center pin both matter. Most listed adapters use a 5.5 by 2.5mm round tip, and one also notes compatibility with 5.5 by 2.1mm. Do not force a smaller plug into a larger socket or assume that a visually similar barrel connector is interchangeable. USB-C and rectangular 6.5 by 4.4mm monitor inputs are entirely different from the round connectors described here.
Check the Exact Monitor Model
The model number is usually printed on a sticker at the rear of the display or shown in the monitor's settings menu. Compare it with the seller's supported list and then verify the voltage and connector. Compatibility categories such as VG, VX, MX, PG, MS, ML, and LS are useful clues, but model names can include regional suffixes and different power versions.
Compare Cable Length and Layout
A standard five-foot AC cable may be sufficient for a desk, while the longer adapters in this guide can suit wall-mounted or distant displays. Check the distance from the outlet to the power connection and allow room for stand movement or cable management. Also confirm whether the product includes both the wall cord and the DC output cable or only the adapter itself.
Review Electrical Protection Features
Look for stated protection against over-voltage, over-current, short circuits, overheating, and surge. These features can reduce the risk of damage when the adapter is connected to a suitable outlet. Certification references such as CE, FCC, and RoHS also provide useful information about the product's stated compliance. No protection feature makes an incompatible connector safe.
Assess Included Wall Connections
Some replacements include a US standard power cord, while others specify a US two-pin plug. Check whether the adapter accepts a standard three-prong cord or requires a figure-eight-style two-prong lead. This matters in homes where the outlet type, grounding arrangement, or regional plug differs. Using the correct specified cord helps maintain the intended electrical connection.
Weigh Compatibility Versus Convenience
A long compatibility list is useful, but a focused replacement can be easier to trust when it directly matches the user's model and original part number. Some products name multiple adapter part numbers, which can make identification easier. Compare output, connector, model support, included components, and protection details together rather than relying on the number of models mentioned.
How to Use and Care for Your ASUS Monitor Power Cord Replacement
Before connecting a replacement, turn off the monitor, unplug the original power supply, and allow the adapter to cool if it has been operating. Record the original voltage, wattage, current, and connector dimensions. Photograph the old setup and note the cable route so the replacement can reproduce the same arrangement without creating tension at the plug.
Install the new adapter by connecting the low-voltage output to the monitor first when its design calls for that sequence, then connect the AC cord to the wall outlet and switch on the display. Keep the connector fully seated but do not force it. If the monitor does not power on, disconnect everything immediately and recheck the voltage and connector rather than trying a different socket repeatedly.
For long-term care, keep the power brick ventilated and away from direct heat, moisture, dust, and carpets that could block airflow. Avoid sharp bends in the DC cable near the monitor and never use a replacement with a damaged housing, discolored insulation, loose plug, or scorched connector. Periodically inspect the cable and replace it if the insulation cracks, the plug becomes loose, or the adapter behaves unusually.
Frequently Asked Questions
What size connector does an ASUS monitor power cord use?
Many compatible ASUS monitors use a round 5.5 by 2.5mm DC connector, which is also called a barrel connector. Some products in this guide mention 5.5 by 2.1mm compatibility, but other ASUS displays use a smaller 4.0mm tip or USB-C. Measure the original connector before ordering because outer diameter alone does not reveal the center-pin size.
Can I use a 65-watt replacement for a monitor that originally used 40 watts?
A 65-watt replacement can generally serve a compatible monitor that requires 40 watts, provided the voltage and connector also match. The higher figure represents available capacity rather than a requirement for the monitor to draw more power. Never use a higher-wattage adapter as a substitute for matching the voltage or tip dimensions.
Is a standard three-prong power cord enough for an ASUS monitor?
It depends on the monitor's power arrangement. Some monitors accept a detachable three-prong AC cord directly, while others use a power brick that requires a figure-eight-style two-prong wall lead. A standard three-prong cord cannot replace the DC output cable or convert mains power into the 19 volts required by many ASUS displays.
How do I identify the correct replacement for my ASUS monitor?
Find the exact model number on the rear label or in the monitor's settings, then inspect the original adapter's output label. Compare the voltage, current or wattage, connector size, and part number with the replacement listing. Broad family compatibility is helpful, but it should supplement rather than replace direct specification verification.
Can I use a 19-volt adapter on a monitor with a USB-C port?
No. A round 19-volt barrel connector does not physically or electrically match a USB-C monitor input. The monitor would need a replacement with the required USB-C power delivery profile and appropriate voltage, current, and cable support. Attempting to force a barrel plug into a USB-C port can damage the monitor.
Why does the replacement adapter need the same voltage as the original?
Voltage must be supplied at the level the monitor's internal electronics were designed to receive. Too much voltage can damage circuitry, while too little can cause instability, blank screens, repeated startup attempts, or failure to power on. A replacement with a higher wattage rating can still be suitable when its voltage and connector match.
Does every ASUS monitor power replacement include a wall cord?
No. Several of the listed 19-volt adapters include an AC power cable, but the included connection can differ between products. The standard three-prong replacement is itself a wall cord rather than a power brick. Check the package description carefully to determine whether an AC lead is included and whether it has a two-pin or three-prong plug.
What should I do if a new adapter makes the monitor flicker or shut down?
Disconnect it from the wall outlet and stop using it if the adapter becomes unusually hot, smells burnt, buzzes, or shows damaged insulation. Reconfirm the output voltage, connector size, wattage, and monitor model rather than assuming the replacement is faulty. If the specifications match, have the monitor or PSU inspected by a qualified technician.
Final Thoughts on Choosing the Best ASUS Monitor Power Cord Replacement
The 19V Charger Compatible with Asus Monitor Power Cord VG248QG VG278 VG245 stands out as the strongest overall choice because it combines a 4.8 rating, a 90-watt maximum, and broad coverage across many ASUS families. The Standard 5ft three-prong cord is the practical budget choice for replacing a standard wall lead, while the HHZ 65W charger offers the most detailed premium package with extensive model and part-number information.
Whichever option you choose, start with the monitor's original specifications rather than its screen size or brand alone. Match the voltage, confirm that the wattage is sufficient, verify the connector dimensions, and check what wall cable is included. Long compatibility lists are useful only when the display actually uses the stated 19V round-tip arrangement.
Finally, compare the complete package, cable length, warranty information, protection features, and current price before purchasing. Replacement components and monitor models can change over time, and prices fluctuate. Checking the live listing immediately before ordering helps ensure that the connector, model support, and included accessories still align with your needs.