ASUS ROG Strix OLED XG27UCDMG 4K 240Hz Tandem QD-OLED Gaming Monitor
The ASUS ROG Strix OLED XG27UCDMG is a 26.5-inch viewable 4K gaming monitor featuring Tandem QD-OLED technology, a 3840 × 2160 resolution, 240Hz maximum refresh rate, and 0.03ms GTG response time. It combines high pixel density, 99% DCI-P3 coverage, 10-bit color, HDR10 support, and adaptive synchronization for high-refresh gaming and detailed visual work.
Key Features
- 26.5-inch Tandem QD-OLED panel with 3840 × 2160 4K resolution and 240Hz maximum refresh rate.
- 0.03ms GTG response time, 1,500,000:1 typical contrast ratio, and 1,000 cd/m² peak HDR brightness.
- 99% DCI-P3 coverage, 10-bit color, and Delta E < 2 color accuracy.
- DisplayPort 1.4 DSC, dual HDMI 2.1 FRL ports, and USB-C with DisplayPort Alt Mode and 90W power delivery.
- ASUS OLED Care, Neo Proximity Sensor, KVM switch, FreeSync Premium Pro, and G-SYNC Compatible support.
Display and Gaming Performance
The XG27UCDMG uses a Tandem QD-OLED panel with a 3840 × 2160 resolution and 16:9 aspect ratio. Its 240Hz refresh rate and 0.03ms GTG response time are designed for high-frame-rate gaming, while the 178° horizontal and vertical viewing angles support consistent viewing across the display.
The monitor provides 99% DCI-P3 coverage, 145% sRGB coverage, 10-bit color with 1,073.7 million colors, and Delta E < 2 color accuracy. HDR10 support and a peak HDR brightness of 1,000 cd/m² are combined with a 1,500,000:1 typical contrast ratio.
OLED Protection and Visual Features
ASUS OLED Care is built into the monitor, with the Neo Proximity Sensor included as part of the OLED Care Pro feature set. ASUS also specifies OLED Anti-Flicker 2.0, a custom heatsink, and uniform brightness features for this model.
Gaming functions include Extreme Low Motion Blur, GamePlus, GameVisual, Shadow Boost, Aspect Control, GameFast Input technology, and adaptive synchronization through AMD FreeSync Premium Pro and G-SYNC Compatible support.
Connectivity and USB-C
Connectivity includes one DisplayPort 1.4 with DSC, two HDMI 2.1 FRL inputs, and one USB-C port supporting DisplayPort Alt Mode. The USB-C connection provides up to 90W of power delivery, while the integrated USB hub provides three USB 3.2 Gen 1 Type-A ports. A headphone jack is also provided.
The monitor includes KVM functionality for controlling compatible connected systems through the display's USB connectivity.
Ergonomic Design
The stand provides tilt adjustment from +20° to -5°, swivel adjustment of ±45°, pivot adjustment of ±90°, and up to 120mm of height adjustment. A 100 × 100mm VESA mounting interface is provided for compatible mounting hardware.
DC Supplies Product Note
The XG27UCDMG is specified for 100–240V, 50/60Hz input power and has a rated power consumption below 80W. Its USB-C 90W power delivery can also supply compatible connected devices, making the USB-C connection relevant when planning a workstation around a single display connection.
Specifications
| Specification | Details |
|---|
| Brand | ASUS |
| Part Number / MPN | XG27UCDMG |
| Product Type | Gaming Monitor |
| Panel Size | 26.5 inches |
| Panel Type | QD-OLED |
| Panel Technology | Tandem QD-OLED |
| Aspect Ratio | 16:9 |
| Resolution | 3840 × 2160 |
| Refresh Rate | Up to 240Hz |
| Response Time | 0.03ms GTG |
| Color Space | 99% DCI-P3; 145% sRGB |
| Color Depth | 10-bit |
| Color Accuracy | Delta E < 2 |
| Peak HDR Brightness | 1,000 cd/m² |
| Contrast Ratio | 1,500,000:1 typical |
| HDR Support | HDR10 |
| Display Surface | Anti-Reflection |
| DisplayPort | 1 × DisplayPort 1.4 DSC |
| HDMI | 2 × HDMI 2.1 FRL |
| USB-C | 1 × USB-C with DisplayPort Alt Mode and 90W Power Delivery |
| USB Hub | 3 × USB 3.2 Gen 1 Type-A |
| VESA Mount | 100 × 100mm |
| Power Consumption | <80W |
| Power Input | 100–240V, 50/60Hz |
| Dimensions with Stand | 61.30 × 50.94 × 16.87cm |
| Weight with Stand | 7.44kg |
Frequently Asked Questions
What resolution does the ASUS XG27UCDMG support?
The XG27UCDMG has a native 3840 × 2160 4K resolution.
What is the maximum refresh rate?
The monitor supports a maximum refresh rate of 240Hz.
What type of OLED panel does the XG27UCDMG use?
It uses a Tandem QD-OLED panel with ASUS OLED Care features.
Does the monitor support USB-C power delivery?
Yes. The USB-C port supports DisplayPort Alt Mode and up to 90W Power Delivery.
Does the XG27UCDMG support adaptive synchronization?
Yes. ASUS specifies AMD FreeSync Premium Pro and G-SYNC Compatible support.
Can the monitor be VESA mounted?
Yes. It provides a 100 × 100mm VESA mounting interface.
