Display
26.5 in, QD-OLED, 2560 x 1440 pixels / Quad HD (QHD) / 1440p
26.5
Refresh Rate
48 Hz - 240 Hz / DisplayPort - 410 kHz - 410 kHz; 48 Hz - 240 Hz / HDMI - 30 kHz - 410 kHz; 48 Hz - 240 Hz
48 Hz
Brightness
200 cd/m²
200 cd
Contrast Ratio
1500000 : 1
1500000
Overview
Built around a QD-OLED panel, the ASUS ROG Strix OLED XG27AQDMES runs at 2560 x 1440 pixels / Quad HD (QHD) / 1440p with a 48 Hz - 240 Hz / DisplayPort - 410 kHz - 410 kHz; 48 Hz - 240 Hz / HDMI - 30 kHz - 410 kHz; 48 Hz - 240 Hz refresh range. Motion handling is rated at 0.03 ms GtG. For adaptive sync, it supports FreeSync, G-Sync, VESA AdaptiveSync Display 240 Hz. Colour and light output come in at 200 cd/m² typical brightness, 1500000 : 1 contrast and 99 % DCI-P3 coverage. Ports include 2x HDMI 2.1, 1x DisplayPort 1.4.
BrandASUSPanel TypeQD-OLEDResolution2560 x 1440 pixels / Quad HD (QHD) / 1440pRefresh Rate48 Hz - 240 Hz / DisplayPort - 410 kHz - 410 kHz; 48 Hz - 240 Hz / HDMI - 30 kHz - 410 kHz; 48 Hz - 240 Hz
Key Highlights
- QD-OLED panel at 2560 x 1440 pixels / Quad HD (QHD) / 1440p
- 48 Hz - 240 Hz / DisplayPort - 410 kHz - 410 kHz; 48 Hz - 240 Hz / HDMI - 30 kHz - 410 kHz; 48 Hz - 240 Hz refresh range — built for competitive, fast-paced gaming
- 0.03 ms GtG response time
- 1500000 : 1 contrast ratio
- 200 cd/m² typical brightness
- 99 % DCI-P3 colour coverage
- FreeSync, G-Sync, VESA AdaptiveSync Display 240 Hz
- Connectivity: 2x HDMI 2.1, 1x DisplayPort 1.4
Who Should Buy the Asus ROG Strix OLED XG27AQDMES
+ Best For
OLED gaming
self-emissive pixels favour deep blacks and fast transitions
Competitive QHD play
240 Hz and 0.03 ms GtG target responsive motion
Dark-room users
OLED contrast matters more when ambient light is controlled
Radeon and GeForce owners
both adaptive-sync ecosystems are supported
× Not Ideal For
Bright-room buyers
200 cd/m² typical brightness is modest
USB-C laptop desks
no USB-C video, charging or hub is listed
HDR highlight seekers
400 cd/m² peak is restrained for an OLED gaming model
Speaker-dependent setups
no built-in speakers are included
Display Performance
Refresh Rate
48 Hz - 240 Hz / DisplayPort - 410 kHz - 410 kHz; 48 Hz - 240 Hz / HDMI - 30 kHz - 410 kHz; 48 Hz - 240 Hz
High-refresh gaming range
Response Time
0.03 ms GtG
Manufacturer-published transition time
Brightness
200 cd/m²
Typical brightness as specified; peak figure not published
Contrast
1500000 : 1
Standard panel black depth
Colour Gamut
99 % DCI-P3
Wide-gamut coverage is listed
Gaming Performance
Refresh Rate48 Hz - 240 Hz / DisplayPort - 410 kHz - 410 kHz; 48 Hz - 240 Hz / HDMI - 30 kHz - 410 kHz; 48 Hz - 240 HzHigh ceiling supports competitive frame rates
Response Time0.03 ms (GtG)Published claim without independent testing
VRR / Adaptive SyncFreeSync, G-Sync, VESA AdaptiveSync Display 240 HzHelps reduce tearing on compatible GPUs
GPU Requirement2560 x 1440 pixels / Quad HD (QHD) / 1440p up to 410 HzHigh refresh ceiling needs a high-end GPU to fully utilise
HDR & Brightness Reality
DisplayHDR 400 True Black suits this panel's strengths better than a conventional DisplayHDR 400 LCD badge. Self-emissive pixels can produce very dark blacks, and the sheet claims 1,500,000:1 contrast. Brightness is the limitation: 200 cd/m² typical and 400 cd/m² peak provide only modest highlight intensity. HDR should therefore look richer mainly through black level and colour rather than strong luminance. Bright-room users may find the normal output subdued.
Connectivity & Ports
HDMI2x HDMI 2.1Published port count and version
DisplayPort1x DisplayPort 1.4Input includes Display Stream Compression (DSC)
USB-CNot publishedNo one-cable laptop or charging function
USB HubNot publishedNo listed peripheral expansion
Audio Out3.5 mm audio out / headphone outExternal audio may still be preferred
Desk Fit & Ergonomics
Size / Footprint611 mm x 393 mm x 188 mm (W x H x D)Check desk width and depth before purchase
StandRemovable: YesA separate arm can replace the supplied base
VESA Mount100 x 100 mmUse a matching arm or wall mount
Tilt-5 ° to +20 ° / 1/4" Tripod SocketCovers the published forward and backward range
Height Adjust110 mm (4.33 in)Supports eye-level positioning
Swivel / Pivot±45 ° / ±90 °Supports shared angles and portrait rotation
Real-World Use Cases
240 Hz and OLED response suit competitive and action titles
self-emissive black levels improve shadow depth
99% DCI-P3 and 10-bit colour support broad palettes
two HDMI 2.1 FRL ports and DisplayPort cover modern sources
Pros & Cons
Pros
- 48 Hz 240 Hz / DisplayPort - 410 kHz - 410 kHz; 48 Hz - 240 Hz / HDMI - 30 kHz - 410 kHz; 48 Hz - 240 Hz refresh range with 0.03 ms GtG response is built for competitive, fast-paced gaming
- 1500000 : 1 contrast delivers near-infinite black depth
- FreeSync, G-Sync, VESA AdaptiveSync Display 240 Hz give broad adaptive-sync compatibility
- 99 % DCI-P3 coverage wide-gamut coverage suits colour-critical work
- Stand offers 110 mm (4.33 in) height adjustment, swivel, pivot
- Backed by 3 years
- 110 ppi / 43 ppcm keeps text and UI edges crisp at normal desk distance
- OLED per-pixel dimming gives true blacks and instant pixel response
- 100 x 100 mm VESA mount compatibility works with third-party arms and stands
- Low blue light and/or flicker-free modes support longer viewing comfort
- 3 combined HDMI/DisplayPort inputs support multiple sources
Cons
- No USB-C or USB hub for peripheral connectivity
- No listed built-in speakers
- No KVM switch for controlling two PCs from one keyboard/mouse
- No energy-efficiency certification (e.g. ENERGY STAR, TCO) is listed
- Limited or no USB-A downstream ports for connecting multiple accessories
Score & Ratings
8.4/10
Great
Model Information
13
| Specification | Value |
|---|---|
| Brand | ASUS |
| Series | ROG Strix |
| Model | ROG Strix OLED XG27AQDMES |
| Full Product Name | ASUS ROG Strix OLED XG27AQDMES |
| Model Year | 2025 |
| Monitor Type | Gaming Monitor |
| Market Position | Upper-Mid to High-End Gaming |
| Primary Use | Competitive & Immersive Gaming |
| Launch Status | 2025 |
| Available Colors | Black |
| Warranty | 3 years (36 months) standard limited warranty from date of purchase |
| Panel Warranty | 3 years |
| Burn-In Warranty | 3 years (36 months) OLED panel burn-in coverage on most models |
Display & Panel
14
| Specification | Value | What It Means |
|---|---|---|
| Screen Size | 26.5 in | |
| Exact Diagonal | 678.2 mm (26.70 in) | |
| Aspect Ratio | 16:9 | |
| Active Display Width | 590.42 mm (23.24 in) | |
| Active Display Height | 333.72 mm (13.14 in) | |
| Display Area | 87.16 % | |
| Panel Type | QD-OLED | QD-OLED affects viewing angles, black depth and color consistency — each panel technology trades these off differently. |
| Panel Technology | OLED | |
| Panel Manufacturer | Samsung | |
| OLED Technology | QD-OLED | |
| Backlight Type | Self-emissive (no backlight — OLED) | |
| Self-Emissive Display | Yes | |
| Quantum Dot | Yes | |
| 3D Support | No |
Resolution & Pixel Details
3
| Specification | Value | What It Means |
|---|---|---|
| Native Resolution | 2560 x 1440 pixels / Quad HD (QHD) / 1440p | |
| Pixel Density | 110 ppi / 43 ppcm | 110 ppi / 43 ppcm indicates how much scaling may be needed in the operating system for comfortable reading. |
| Pixel Pitch | 0.229 mm (0.01 in) |
Picture Quality & Color
13
| Specification | Value | What It Means |
|---|---|---|
| Panel Bit Depth | 10 bits | |
| FRC | No | |
| Display Colors | 1073741824 colors / 30 bits | |
| Typical Brightness | 200 cd/m² | |
| Peak Brightness | 400 cd/m² | |
| Static Contrast Ratio | 1500000 : 1 | |
| Horizontal Viewing Angle | 178 ° | |
| Vertical Viewing Angle | 178 ° | |
| HDR Support | DisplayHDR 400 True BlackHDR10 |
|
| HDR10 | Yes | |
| DCI-P3 Coverage | 99 % | 99 % indicates how much of that color space the panel can reproduce, which affects color accuracy for photo/video work. |
| Gamma Adjustment | Yes | |
| Color Adjustment | Yes |
Refresh Rate, Response & Gaming
13
| Specification | Value |
|---|---|
| Native Refresh Rate | 240 Hz |
| Refresh Rate Range | 48 Hz - 240 Hz / DisplayPort - 410 kHz - 410 kHz; 48 Hz - 240 Hz / HDMI - 30 kHz - 410 kHz; 48 Hz - 240 Hz |
| Minimum Response Time | 0.03 ms |
| AMD FreeSync | Yes |
| NVIDIA G-Sync | Yes |
| Motion Blur Reduction | Yes |
| Shadow Boost | Yes |
| Crosshair | Yes |
| Dynamic Crosshair | Yes |
| FPS Counter | Yes |
| AI Gaming Features | Yes |
| GameFast Input | Yes |
| GameVisual | Yes |
Ports & Connectivity
10
| Specification | Value |
|---|---|
| HDMI Ports | 2 |
| HDMI Version | 2.1 |
| HDMI Bandwidth | 30 kHz - 410 kHz |
| HDMI FRL | Yes |
| DisplayPort Input | 1 |
| DisplayPort Version | 1.4 |
| Display Stream Compression | Yes |
| HDCP Support | Yes |
| Audio Output | 3.5 mm |
| Headphone Output | 3.5 mm Audio Out |
Audio, Camera, Network & Smart Features
1
| Specification | Value |
|---|---|
| Built-In Camera | No |
Ergonomics & Stand
16
| Specification | Value | What It Means |
|---|---|---|
| VESA Mount | Yes | |
| VESA Size | 100 x 100 mm | |
| Removable Stand | Yes | |
| Height Adjustment | Yes | 110 mm (4.33 in) of travel allows the screen to be raised or lowered for a comfortable eye-level position. |
| Height Adjustment Range | 110 mm (4.33 in) | |
| Tilt Adjustment | Yes | |
| Forward Tilt | 5 ° | |
| Backward Tilt | 20 ° / 1/4" Tripod Socket | |
| Swivel Adjustment | Yes | |
| Left Swivel | 45 ° | |
| Right Swivel | 45 ° | |
| Left Pivot | 90 ° | |
| Right Pivot | 90 ° | |
| Portrait Mode | Yes | |
| Security Lock | Yes | |
| Anti-Theft Lock | Kensington Lock |
Dimensions, Weight & Design
6
| Specification | Value |
|---|---|
| Dimensions With Stand | 611 mm x 393 mm x 188 mm (W x H x D) |
| Dimensions Without Stand | 611 mm x 370 mm x 69 mm (W x H x D) |
| Weight With Stand | 6.8 kg (14.99 lbs) |
| Weight Without Stand | 4.9 kg (10.8 lbs) |
| Stand Depth | 188 mm (7.40 in) |
| RGB Lighting | Yes |
Power & Operating Conditions
9
| Specification | Value |
|---|---|
| Power Input | 100–240V |
| 110V Input Range | 100 V - 120 V |
| 220V Input Range | 220 V - 240 V |
| AC Frequency | 50 Hz - 60 Hz |
| Average Power Consumption | 25 W |
| Sleep Consumption | 0.5 W |
| Off Consumption | 0.3 W |
| Operating Temperature | 0 °C - 40 °C / 32 °F - 104 °F |
| Storage Temperature | -20 °C - 60 °C / -4 °F - 140 °F |
Eye Care, Protection & Additional Features
12
| Specification | Value |
|---|---|
| Flicker-Free | Yes |
| Low Blue Light | Yes |
| Proximity Sensor | Yes |
| OLED Protection | Yes |
| OLED Care | Yes |
| Burn-In Protection | Yes (ASUS OLED Care / OLED Care Pro) |
| Custom Heatsink | Yes |
| Desktop Control Software | Yes |
| Monitor Management Software | Yes |
| Aura Sync | Yes |
| Anti-Theft Slot | Yes (Kensington lock slot) |
| Additional Monitor Features | AI Visual; Asus Aura Sync Lighting; Asus DisplayWidget Center; Aspect Control; Asus Power Sync; Clear Pixel Edge; Color Temperature Selection; Customized heatsink; GameFast Input; GameVisual; Intelligent voltage optimization; Neo Proximity Sensor; OLED Anti-flicker technology; ROG Gaming A.I.; Trace Free Technology; Uniform Brightness |
Certifications, Standards & Licenses
4
| Specification | Value |
|---|---|
| TÜV Flicker-Free | Yes |
| TÜV Low Blue Light | Yes |
| VESA DisplayHDR | DisplayHDR 400 True Black |
| VESA AdaptiveSync | Display 240 Hz |
Included Accessories
2
| Specification | Value |
|---|---|
| HDMI Cable | HDMI cable |
| DisplayPort Cable | DisplayPort cable |
Packaging Information
5
| Specification | Value |
|---|---|
| Package Dimensions | 780 mm x 470 mm x 186 mm (W x H x D) |
| Package Width | 780 mm (30.71 in) |
| Package Height | 470 mm (18.50 in) |
| Package Depth | 186 mm (7.32 in) |
| Package Weight | 8.9 kg (19.62 lbs) |
Frequently Asked Questions
01 Why is the XG27AQDMES peak brightness only 400 cd/m²? +
This specification favours True Black performance rather than very bright highlights. The 200 cd/m² typical level also suggests restrained full-screen output.
02 How does QD-OLED change dark scenes on this Asus model? +
Each pixel produces its own light, so black areas can switch off rather than relying on an LCD backlight. The sheet's 1,500,000:1 contrast claim reflects that advantage.
03 What is the consequence of having no USB ports on a premium gaming screen? +
The monitor cannot act as a peripheral hub or charge a laptop. Keyboard, mouse and storage devices must connect to the PC, console or a separate hub.
04 How hard is 2560 x 1440 at 240 Hz to drive? +
Competitive games can approach the ceiling with suitable settings and a fast system. Demanding single-player titles may need reduced quality or upscaling to reach very high frame rates.
05 Why might portrait rotation be less important on an OLED gaming monitor? +
The stand supports ±90° pivot, so the option exists. Buyers should still follow Asus OLED-care guidance because static portrait layouts can place fixed interface elements in the same areas for long periods.
Reviews
DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT
SHEET № ROG STRIX OLED XG27AQDMES