ASUS
ASUS ROG Strix XG27UCDMG 27" 4K 240Hz OLED gaming monitor
A 27-inch 4K OLED panel running at 240 Hz with 0.03 ms response, 99% DCI-P3 colour and a Neo Proximity Sensor that blanks the screen to limit burn-in risk
- Cabinet ColorBlack
- Bezel Design3 Sided Thin Frame
- Screen Size27"
- WidescreenYes
- Glare ScreenAnti-Reflection
- PanelOLED
- 4K 240Hz QD-OLED panel delivers ultra-smooth competitive gaming
- 03ms response time eliminates ghosting in fast-paced scenes
- 99% DCI-P3 and 145% sRGB coverage for accurate colour work
- Neo Proximity Sensor blanks the screen when you step away to reduce burn-in risk
- USB-C with 90W power delivery simplifies laptop docking
27-inch 4K 240Hz QD-OLED monitor
The ASUS ROG Strix XG27UCDMG uses a 26.5-inch fourth-generation QD-OLED panel with a 3840 x 2160 resolution and 240Hz refresh rate. A 0.03ms GTG response time and 1,500,000:1 contrast ratio support fast-paced gaming. The panel covers 99% DCI-P3 and 145% sRGB with 1.07 billion colours.
Competitive gamers and colour-critical creators
The 27-inch 4K 240Hz combination suits players who want high pixel density and motion clarity together. Creative professionals benefit from the wide gamut and factory calibration potential. Users who need higher sustained full-screen brightness for bright rooms or who prefer a larger diagonal for productivity should consider other models.
Sustained-load behaviour with OLED Care Pro
Peak brightness reaches 1000cd/m² in HDR while full-screen white output sits at 250cd/m². OLED Anti-Flicker 2.0 reduces flicker by 20% compared to the previous panel generation during variable refresh rates. The Neo Proximity Sensor detects user absence and switches the screen to black, lowering burn-in risk during long idle periods. Uniform Brightness keeps luminance consistent across varying content loads.
Highlights
- 4K 240Hz QD-OLED panel delivers ultra-smooth competitive gaming
- 03ms response time eliminates ghosting in fast-paced scenes
- 99% DCI-P3 and 145% sRGB coverage for accurate colour work
- Neo Proximity Sensor blanks the screen when you step away to reduce burn-in risk
- USB-C with 90W power delivery simplifies laptop docking
Specifications
| Brand | ASUS |
|---|---|
| Series | ROG Strix |
| Model | XG27UCDMG |
| Cabinet Color | Black |
| Bezel Design | 3 Sided Thin Frame |
| Screen Size | 27" |
| Widescreen | Yes |
| Glare Screen | Anti-Reflection |
| Panel | OLED |
| Display Type | UHD |
| Adaptive Sync Technology | FreeSync Premium Pro & G-Sync Compatible |
| Resolution | 3840 x 2160 (4K) |
| Aspect Ratio | 16:9 |
| Brightness | 450cd/m2 (Max), 1000cd/m2 (HDR, Peak), 250cd/m2 (100% APL) |
| Contrast Ratio | 1,500,000:1 |
| Response Time | 0.03 ms (GTG) |
| Color Gamut | 99% DCI-P3, 145% sRGB |
| Display Colors | 1.07 Billion |
| Monitor Pixel Density | 0.15525mm |
| Refresh Rate | 240Hz |
| VESA Certified DisplayHDR | DisplayHDR True Black 400 |
| Curved Surface Screen | Flat Panel |
| HDMI | 2 x HDMI 2.1 |
| DisplayPort | 1 x DisplayPort 1.4 |
| Video Ports | 1 x DisplayPort 1.4 / 1 x USB-C (DP Alternative) 90W / 2 x HDMI 2.1 |
| USB Ports | USB 3.2 Gen 1 |
| Headphone | Yes |
| Power Supply | 100 - 240 VAC, 50/60Hz |
| Power Consumption | Power Consumption: <80W Power Saving Mode: <0.5W Power Off Mode: <0.3W |
| Stand Adjustments | Tilt: Yes (+20° ~ -5°) Swivel: Yes (+45° ~ -45°) Pivot: Yes (+90° ~ -90°) Height Adjustment: 0~120mm |
| Built-in Speakers | No |
| Built-in Webcam | No |
| VESA Compatibility - Mountable | 100 x 100mm |
| Features | Color Accuracy: Delta E < 2 GamePlus: Yes Low Blue Light: Yes (Hardware Solution) HDCP Support: Yes, 2.2 Game Visual: Yes VRR Technology: FreeSync Premium Pro & G-SYNC Compatible Extreme Low Motion Blur: Yes HDR Mode: Yes Shadow Boost: Yes Display Widget: Yes, DisplayWidget Center PIP (PBP) Technology: Yes Aspect Control: Yes KVM Switch: Yes |
| Dimensions | 20.06" x 24.13" x 6.64" with Stand 14.54" x 24.03" x 2.62" without Stand |
| Weight | 16.40 lbs. with Stand 11.02 lbs. without Stand |
| Package Contents | DisplayPort cable HDMI Ultra High Speed Cable Microfiber cloth Power cord Quick start guide ROG pouch ROG sticker USB 3.2 cable USB-C cable VESA mount kit Warranty Card |
| Shipping weight | 9.71 kg |
| Package size | 860 × 500 × 163 mm |
Questions about this item
Will the 240 Hz refresh rate work at 4K over HDMI?
HDMI 2.1 supports 4K at 240 Hz on this monitor, so the full refresh rate is available through that port.
Can the USB-C port charge a laptop while delivering video?
The USB-C connection provides DisplayPort Alt Mode plus 90 W power delivery, handling both signal and charging simultaneously.
Does the stand allow the screen to be turned vertically for coding?
The included stand offers height adjustment, pivot, swivel and tilt, so the panel can be rotated into portrait orientation.
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