Epic Price! The ASUS ROG Strix XG27UCDMG 4K QD-OLED 240Hz G-Sync HDR 27in Gaming Monitor features a 27inch QD-OLED display with 3840 x 2160 max resolution, 240Hz refresh rate, 0.03ms (GtG) response time, G-Sync and FreeSync Premium Pro compatible, USB-C connectivity with 90W power delivery, HDR10, VESA DisplayHDR 400 True Black, flicker-free and low blue light technology, fully adjustable stand (tilt, swivel, pivot and height) with flexible mounting options including VESA 100mm support.
Features
ROG Strix OLED XG27UCDMG
One for All
ROG Strix OLED XG27UCDMG Gaming Monitor — 27-inch (26.5-inch viewable) 4K QD-OLED panel, 240Hz, 0.03ms(GTG), OLED Anti-Flicker 2.0, custom heatsink, OLED Care Pro, Neo Proximity Sensor, G-SYNC® compatible, VESA DisplayHDR™ 400 True Black, uniform brightness, 99% DCI-P3, true 10-bit colour, DisplayWidget Center.
The ROG Strix OLED XG27UCDMG is a 27-inch, 240Hz 4K gaming monitor that boasts the latest fourth-generation QD-OLED technology to deliver supersharp visuals and crisp text. The cutting-edge QD-OLED panel offers greater longevity compared to previous OLED technologies and minimal flicker―even when frame rates fluctuate. With the addition of the Neo Proximity Sensor in the new ROG OLED Care Pro suite, the monitor transitions to a black screen when no user is detected, guarding against burn-in.
- 26.5-inch 4K (3840 x 2160) QD-OLED gaming monitor with 240Hz refresh rate and 0.03ms response time
- Latest 4th-gen QD-OLED technology delivers sharper imagery and crystal-clear text, a longer lifespan over previous-gen OLEDs
- OLED Anti-Flicker 2.0 technology includes a new luminance compensation algorithm that reduces flicker by 20% compared to previous-gen panels, ensuring comfortable viewing
- New ASUS OLED Care Pro functions with Neo Proximity Sensor that precisely detects when the user is away, switching to a black screen to reduce the risk of burn-in
- VESA DisplayHDR™ 400 True Black compliance, 99% DCI-P3 gamut, true 10-bit colour, and Delta E < 2 colour difference for astonishing HDR performance, making it perfect for photo and video editing
- Exclusive ASUS DisplayWidget Center application allows users to easily access OLED Care Pro functions and adjust monitor settings using a mouse
- Extensive connectivity options include DisplayPort™ 1.4, HDMI® 2.1, USB-C® (DP Alt mode+ 90W PD), USB hub and earphone jack
Supersmooth Visuals
Designed for discerning gamers and professional creators, it offers a refresh rate of 240Hz and 0.03ms grey-to-grey (GTG) response time for supersharp and fluid visuals.
4th Gen QD-OLED Technology

Supersharp Imagery & Text Detail
The latest-generation QD-OLED panel boasts an amazing 166ppi pixel density to deliver optimal visuals and incredibly-clear text for viewing experiences that are second to none.
Incredible Motion Clarity
Exclusive ASUS Extreme Low Motion Blur technology reduces ghosting and motion blur.

Benefits & Advantages of OLED Technology
The latest ASUS OLED panels offer extremely high contrast ratios to deliver the darkest black hues as well as the most vivid colours, helping create immersive visuals for gaming and for creative endeavours. Plus, an astounding 0.03 ms grey-to-grey response time ensures supersmooth, low-latency visuals.
- 1.5M :1 contrast ratio
- 0.03 ms response time
- 99% DCI-P3 gamut
- Delta E < 2
ROG OLED Anti-Flicker 2.0
New ROG OLED Anti-Flicker 2.0 technology minimises onscreen flicker by up to 20% compared to previous-generation panels, enabling comfortable gaming experiences.
Luminance Compensation Algorithm
The advanced luminance compensation algorithm dynamically boosts pixel brightness during refresh rate fluctuations to ensure more consistent visuals without increasing input lag or compromising refresh rates.
Refresh Rate Cap
This feature caps the monitor refresh rate to reduce onscreen flicker. The three presets (High / Mid / Off) have been upgraded, enabling each to cover a wider refresh rate range to suit individual preferences.
ASUS OLED Care Pro
Screen Protection
New ASUS OLED Care Pro technology provides a full set of customisable monitor settings to protect the OLED panel and ensure longevity. Plus, it includes the new Neo Proximity Sensor that detects your distance from the monitor and transitions to a black image when you’re away to safeguard the panel from burn-in. All settings can be easily managed via DisplayWidget Center.
Neo Proximity Sensor
The built-in Neo Proximity Sensor precisely detects your distance from the monitor. When you step away, the monitor transitions to a black image to protect against panel burn-in, and instantly restores onscreen content when you return. Detection distance can be customised to suit personal preference, ensuring maximum convenience and protection.
*Please ensure that the monitor sensor is properly angled and cleaned by using the included microfibre cloth before activating the detection function.
Pixel Cleaning
Recalibrates the screen when the monitor has been active for several hours―a process that takes just a few minutes and activates automatically when the monitor is turned off (Do not unplug the power cord during this time as it will interrupt the pixel-cleaning process.)
Screen Move
Pixel locations are slightly shifted periodically to help prevent burn-in, and users can choose between several movement levels.
Boundary Detection
Dynamically detects the boundary of the black bars and reduces the brightness and also slightly shifts the pixel of the near borders.
Screen Saver
Automatically dims the screen after two minutes of inactivity.
Logo Brightness Adjustment
Automatically detects static onscreen logos and reduces their brightness to correct for potential picture-quality issue.
Taskbar Detection
Dynamically detects the taskbar and reduces brightness around it to avoid burn-in.
Outer Dimming Control
Automatically identifies and adjusts the brightest areas of the screen to reduce the risk of burn-in.
Global Dimming Control
Dynamically adjusts the overall brightness of the display to reduce the risk of burn-in.
Target Mode
Dims the entire screen, except for a selected pinned window, which maintains its current brightness setting.

Worry-Free OLED Monitor
Built to Last
ROG OLED monitors are engineered to deliver stunning visuals for years to come. An innovative custom heatsink and a unique internal airflow improve cooling and reduce the risk of burn-in.
Your Monitor, Your Way
The XG27UCDMG monitor is a versatile powerhouse designed to excel in gaming, streaming, and content creation. Its high refresh rate, low response time, and vivid colours deliver a seamless, immersive experience. The wide viewing angles and built-in tripod socket make it perfect for streaming, while its exceptional colour accuracy and wide colour gamut ensure professional-grade content creation.
- Gaming
- Streaming
- Content creation

Futuristic, Cyberpunk-Inspired Aesthetic
The clean and elegant aesthetic of the XG27UCDMG underlines its premium status. There’s even a built-in tripod socket on top of the monitor to accommodate a camera for streaming setups.

Compact Stand Design
The base has a small footprint to free up space for the keyboard and mouse. It also includes a mobile device groove to prop up phones.
*Image for illustrative purposes only. Mobile device not included.

SuperSlim Frameless Design
The frameless panel facilitates immersive viewing.
DisplayWidget Center
Take your monitor to the next level with DisplayWidget Center, a powerful monitor management software designed to help you optimise, personalise, and fully utilise your display via a mouse — so there’s no need to access the OSD menu. Additionally, DisplayWidget Center notifies you of the latest firmware updates and includes a direct update option. You can also import or export display configurations for sharing.
- Customisable monitor settings
- Auto Firmware Update Notification
- Multiscreen Control
- OLED Protection
ROG Gaming AI Technology
The ROG Gaming AI technology in XG27UCDMG includes AI Visual, Dynamic Crosshair, and Dynamic Shadow Boost, leveraging AI technology to help you practice more effectively to improve your gaming experience.
Dynamic Crosshair
Automatically changes the crosshair to a colour that contrasts with the background, so it stands out for more accurate aim.
Dynamic Shadow Boost
Automatically enhances dark areas of the scene to make it easier to spot enemies hiding in dim areas of the map.
AI Visual
Automatically detects what’s onscreen and adjusts to provide the best default or user-preset monitor settings through DisplayWidget Center.
Uniform Brightness
When activated, the ROG-exclusive Uniform Brightness (When the monitor is in sRGB mode) setting within the OSD menu decreases peak brightness to keep levels consistent for better viewing—even when changing the size of bright white windows. It also makes marathon gaming sessions much more comfortable on the eyes.
Aspect Ratio Control
For competitive gamers who are more familiar with smaller 1080p monitors, the XG27UCDMG can display a 4:3 aspect image in 1280 x 960 or 1024 x 768 resolutions. Alternatively, users can play on a pixel-perfect 24.5-inch, 3552 x 1998 image at a native 240Hz refresh rate.
Smooth and Responsive
The XG27UCDMG features AMD FreeSync™ Premium technology and NVIDIA® G-SYNC® compatibility, ensuring supersmooth, tear-free visuals with low latency.
In-Game Enhancements
GamePlus
The ASUS-exclusive integrated GamePlus hotkey offers in-game enhancements. Co-developed with input from pro gamers, GamePlus enables you to practice and improve gaming skills with the ROG Gaming AI technology-enhanced Dynamic Crosshair.
- Stopwatch
- Crosshair
- Timer
- FPS Counter
- Display Alignment
- Sniper
GameVisual
ASUS GameVisual technology offers seven pre-set display modes to optimise visuals for different types of content. This unique feature can be easily accessed using a hotkey or via the OSD settings menu.
- Racing
- MOBA
- Cinema
- RTS/RPG
- FPS mode
- sRGB
- Scenery
Flicker-Free Technology
TÜV Rheinland-certified ASUS Flicker-Free technology eliminates flicker, ensuring comfortable viewing experiences. This technology helps minimise eyestrain and other potential issues typically associated with extended hours of viewing.
Low Blue Light Technology
The new hardware-based ASUS Low Blue Light technology reduces potentially harmful high-energy blue-light emissions while offering colour performance that’s better than monitors with software-based filtering solutions.

Rich Connectivity
Extensive connectivity options such as DisplayPort™ 1.4 with Display Stream Compression (DSC), HDMI® 2.1, USB-C with 90-watt Power Delivery, and a USB hub provide support for a wide array of multimedia devices.
Ergonomic Stand
The specially designed stand offers tilt, swivel, pivot, and height adjustments for the ideal viewing position. The display is also VESA wall-mount-compatible.
- 0-120MM Height Adjustment
- -45°~ +45° Swivel
- -5°~ +20° Tilt
- -90°~ +90° Pivot
Backed by a 3 year ASUS warranty.