ASUS ROG Strix XG27UCG computer monitor 68.6 cm (27 inch) 3840 x 2160 pixels 4K Ultra HD LCD Black

The ASUS ROG Strix XG27UCG is a 27-inch 4K Ultra HD (3840 x 2160) Fast IPS gaming monitor that combines high resolution with fast response for gaming and multimedia. It offers a 1 ms response time, DisplayHDR400 support, wide 178° viewing angles and ergonomic features including height adjustment and VESA mounting. The monitor also includes a USB Type-C downstream port and a hotkey-enabled Frame Rate Boost mode that switches to 1080p at up to 320 Hz for esports-oriented performance.

Advantages

This monitor provides flexible dual-mode performance, allowing seamless switching between native 4K at 160 Hz and FHD at 320 Hz for different gaming needs. Fast IPS panel technology delivers vivid colours and consistent image quality across wide viewing angles, while a 1 ms response time reduces motion blur. DisplayHDR400 increases dynamic range for brighter highlights, and the integrated USB Type-C connection improves connectivity options for modern setups.

Suitable for

• Competitive esports and fast-paced gaming
• High-resolution single-player games and immersive multimedia
• Content creators who need accurate colours and a high-resolution reference
• Ergonomic desktop setups with VESA mounting or adjustable stands

Key specifications

• Screen size: 27" (68.6 cm)
• Resolution: 3840 x 2160 (4K Ultra HD)
• Panel type: Fast IPS
• Refresh rates: up to 160 Hz (4K), up to 320 Hz (FHD via Frame Rate Boost)
• Response time: 1 ms
• HDR: DisplayHDR400
• Brightness (typical): 350 cd/m²
• Contrast ratio (typical): 1000:1
• Viewing angles: 178° horizontal / 178° vertical
• Connectivity: USB Type-C (downstream port x1) plus standard video inputs (see manufacturer)
• VESA mounting: Yes
• Speakers: No
• Colour: Black

How to use

Place the monitor on a stable surface or mount it using a VESA-compatible arm or bracket. Connect your PC or console using the recommended display input for your desired mode: use native 4K inputs for 3840 x 2160 at up to 160 Hz, or enable the Frame Rate Boost hotkey to switch to 1080p at up to 320 Hz for competitive play. Use the on-screen display (OSD) to adjust brightness, colour settings, and enable DisplayHDR400 as needed. Connect peripherals via the USB Type-C downstream port if supported by your devices.

Recommendations

For competitive gaming, enable the FHD 320 Hz mode with the Frame Rate Boost hotkey and use low-latency display settings. For colour-critical work or immersive single-player gaming, use the native 4K 160 Hz mode and calibrate colours through the OSD or a hardware calibrator. Ensure adequate cooling and avoid prolonged maximum-brightness HDR use to reduce energy consumption and extend panel life.