ASUS ROG Strix XG27UCGR computer monitor 68.6 cm (27 inch) 3840 x 2160 pixels 4K Ultra HD LCD Black

The ASUS ROG Strix XG27UCGR is a 27" 4K Ultra HD (3840×2160) Fast IPS gaming monitor designed for high-resolution gaming, content creation and detailed desktop work. It offers a dual-mode display that runs at native 4K with high refresh up to 162 Hz or switches to a Full HD mode up to 485 Hz for esports scenarios, with a very low response time and adaptive-sync compatibility.

Advantages

This monitor combines a high-resolution 27" Fast IPS panel with fast response and versatile refresh modes, enabling both detailed 4K visuals and ultra-high-frame-rate competitive play. ASUS visual technologies improve color gradation and reduce motion artifacts, while USB Type-C with DisplayPort Alt Mode simplifies connectivity. Adjustable ergonomics and VESA support add installation flexibility.

Suitable for

• High-resolution gaming and single-player titles where 4K detail matters
• Esports and fast-paced competitive gaming using the FHD high-refresh mode
• Content creation, photo and video editing that benefit from wide color coverage
• General productivity and multitasking on a 27" desktop workspace

When it may not be suitable

If you need an integrated USB hub or built-in speakers, this model does not include those features. Also, achieving 4K at the highest refresh rates requires a powerful graphics card and sufficient system bandwidth; users with older or lower-end GPUs may not be able to take full advantage of the 4K 162 Hz or FHD 485 Hz modes.

Key specifications

• Screen size: 27 inches (68.58 cm), flat panel
• Resolution: 3840 x 2160 (4K Ultra HD), 16:9
• Panel type: Fast IPS
• Refresh rate: Dual mode — up to 162 Hz at 4K or up to 485 Hz at FHD via Frame Rate Boost
• Response time: down to 0.3 ms (with Fast IPS / Frame Rate Boost) and 1 ms typical
• Brightness: 400 cd/m² (typical)
• Contrast ratio: 1300:1 (typical)
• Color gamut: ~95% DCI-P3 with ASUS gray-scale tracking
• Adaptive sync: NVIDIA G-SYNC and AMD FreeSync compatible; ELMB SYNC support
• Connectivity: USB Type-C (DisplayPort Alt Mode), DisplayPort, HDMI
• VESA mounting compatible and adjustable stand (height adjustable)
• Energy efficiency classes: SDR F, HDR G; energy use approx. 26 kWh (SDR) per 1000 h
• Color: Black

How to use

Place the monitor on a stable surface or mount it using a VESA-compatible arm or bracket. Use the included stand to adjust height for comfortable viewing. Connect your PC or console via DisplayPort or HDMI for high-resolution input, or use the USB Type-C port (DP Alt Mode) for single-cable video and power-capable connections where supported. For competitive play, switch to the FHD high-refresh mode via the hotkey or on-screen menu; for detailed work or immersive visuals, use the native 4K mode. Adjust brightness, color presets and ELMB/VRR settings through the on-screen display or ASUS DisplayWidget Center software.

What to consider before purchase

• Ensure your graphics card and cables support the desired mode (4K at high refresh or FHD at extreme refresh).
• Check that you do not require built-in speakers or an integrated USB hub, as this model lacks them.
• Consider power and energy class ratings if energy consumption is a priority.

Recommendations

For best results in 4K workflows, use DisplayPort or a compatible USB-C connection with a capable GPU. Switch to the FHD 485 Hz mode for esports sessions to minimize latency, and enable ELMB SYNC with adaptive sync when available to reduce motion blur and tearing.