AOC 27 IPS MONITOR U27G4R

AOC U27G4R 27 Inch Dual Mode 4K 160Hz and Full HD 320Hz Fast IPS Gaming Monitor

The AOC U27G4R 27 Inch Dual Mode 4K 160Hz and Full HD 320Hz Fast IPS Gaming Monitor is a 27 inch Fast IPS monitor designed for fast and immersive gaming. It combines a native 3840 x 2160 4K at 160Hz or 1920 x 1080 Full HD at 320Hz with a refresh rate of 160Hz in 4K mode and 320Hz in Full HD mode and a response time of 1ms Grey to Grey and 0.5ms MPRT, providing a clear and responsive viewing experience.

Image quality is supported by VESA DisplayHDR 400, 400 cd/m² brightness, a 1000:1 contrast ratio and 124.7 percent sRGB. Its connection options make it straightforward to use with compatible desktop PCs, gaming PCs, laptops and other supported video sources.

Key Features

• 27 inch display
• Fast IPS panel technology
• 3840 x 2160 4K at 160Hz or 1920 x 1080 Full HD at 320Hz native resolution
• 16:9 aspect ratio
• 160Hz in 4K mode and 320Hz in Full HD mode refresh rate
• 1ms Grey to Grey and 0.5ms MPRT response time
• 400 cd/m² brightness
• 1000:1 contrast ratio
• 124.7 percent sRGB colour coverage
• VESA DisplayHDR 400 support
• Adaptive Sync and NVIDIA G-SYNC compatible operation
• Height, tilt, swivel and pivot adjustable
• VESA mounting support
• HDMI 2.1
• DisplayPort
• USB hub with four USB-A ports and USB-B upstream
• 3.5mm headphone output
• Dual resolution and refresh rate mode
• Low input lag
• Shadow Control
• Game colour controls

Display and Resolution

The 27 inch panel uses a native 3840 x 2160 4K at 160Hz or 1920 x 1080 Full HD at 320Hz resolution. This provides detailed images and useful desktop space for supported games, applications, media and multitasking.

The 16:9 aspect ratio provides broad compatibility with modern PC, console and video content.

Smooth and Responsive Performance

The 160Hz in 4K mode and 320Hz in Full HD mode refresh capability allows the display to update the image rapidly when paired with compatible hardware and the correct connection. Higher refresh rates can improve motion clarity and make cursor movement, camera panning and gameplay feel smoother.

A response time of 1ms Grey to Grey and 0.5ms MPRT helps reduce visible ghosting and motion blur around fast-moving objects. This is especially valuable in competitive games, racing titles and other fast-paced content.

Panel and Image Quality

The Fast IPS panel is selected to balance image quality, colour presentation and motion performance for the intended use of this monitor.

Core image specifications include brightness: 400 cd/m²; contrast: 1000:1; colour gamut: 124.7 percent sRGB.

VESA DisplayHDR 400 support allows compatible games, videos and applications to use an expanded range of brightness and colour information. HDR results depend on the content, operating system settings, graphics hardware and selected picture mode.

Variable Refresh Rate

Adaptive Sync and NVIDIA G-SYNC compatible operation allows the monitor to coordinate its refresh behaviour with a compatible graphics card. This can reduce visible screen tearing and minimise stuttering when the rendered frame rate changes.

Connectivity

The monitor provides HDMI 2.1, DisplayPort, USB hub with four USB-A ports and USB-B upstream, 3.5mm headphone output. These connections support compatible PCs, laptops, consoles and accessories, with the exact resolution and refresh rate determined by the selected port, cable and source device.

Stand and Mounting

The supplied stand provides height, tilt, swivel and pivot adjustable, helping the screen sit at a comfortable viewing position.

Supported mounting compatibility allows the supplied stand to be replaced with a suitable monitor arm or wall mount.

Additional Features

The monitor includes a collection of display and usability features designed to improve its day-to-day experience.

• Dual resolution and refresh rate mode
• Low input lag
• Shadow Control
• Game colour controls

Display Specification

Connections and Audio

Stand and Mounting Specification

Warranty and Product Information

Please note: Achieving the maximum refresh rate requires compatible graphics hardware, a suitable video connection and the correct display settings. Available refresh rates can depend on the selected resolution, port and cable.