THE CRUNCH
AOC has introduced the U27G4Z, a 27-inch gaming monitor with a dual-mode Fast IPS panel that runs at 3840 x 2160 at 240 Hz or drops to 1920 x 1080 at 480 Hz. The display is listed on AOC's Chinese website, with no pricing or availability announced for other regions.
The panel carries a 1 ms GtG response time and a claimed 0.3 ms MPRT, a measure of how long a pixel stays visibly lit during motion. It supports Adaptive-Sync and is NVIDIA G-SYNC Compatible, and it holds VESA DisplayHDR 400 certification with 350 nits in SDR mode and 450 nits in HDR mode. AOC quotes a 1,300:1 static contrast ratio, 99% sRGB coverage and 95% of DCI-P3.
Connectivity includes two HDMI 2.1 ports, one DisplayPort 2.1, two USB 3.2 Gen 1 Type-A downstream ports, a USB upstream port and an audio output, as there are no built-in speakers. Display Stream Compression, which packs a higher-resolution signal into the available bandwidth, is required for the highest-bandwidth display modes. Gaming extras include crosshair overlays, shadow control and motion-blur reduction via MBR and MBR Sync, plus Picture-in-Picture and Picture-by-Picture support.
The included stand offers a full range of adjustments, and the monitor also supports VESA 100 x 100 mm mounting. For now, the U27G4Z remains a China listing, so anyone elsewhere will have to wait for AOC to confirm regional plans.