You keep telling yourself you'll buy a 4K monitor or a high-refresh gaming panel. Not both. You shouldn't have to pick.
The U27G4 gives you both. Flip between 3840×2160 at 160 Hz for single-player story games and photo work, or drop to 1920×1080 at 320 Hz when you're in a ranked FPS match and every frame matters. One monitor, two refresh-rate modes, zero compromise.
The Fast IPS panel hits 0.3 ms MPRT at 320 Hz and 0.5 ms MPRT at 160 Hz. VESA DisplayHDR 400 adds real highlight range. sRGB 127% and DCI-P3 99% keep colours punchy whether you're rendering or fragging.
HDMI 2.1 × 2 plus DisplayPort 1.4 means your PS5, Xbox Series X, and PC all connect natively. The full ergonomic stand — 130 mm height, ±90° pivot, ±30° swivel, tilt — lets you find the exact angle without a third-party arm.
HDMI 2.1 and DP cables are in the box. Plug in, pick your resolution mode, play.
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| brand | AOC |
| model | U27G4 |
| panel_type | Fast IPS |
| screen_size_inch | 27 |
| resolution_modes | 3840 × 2160 @ 160 Hz / 1920 × 1080 @ 320 Hz |
| response_time_ms | 0.3 MPRT @ 320 Hz / 0.5 MPRT @ 160 Hz |
| brightness_nits | 350 |
| contrast_ratio | 1000:1 typical / MEGA DCR |
| viewing_angle | 178° H / 178° V |
| colour_gamut_ntsc | 108% |
| colour_gamut_srgb | 127% |
| colour_gamut_dcip3 | 99% |
| colour_accuracy | Delta E < 2 |
| hdr | VESA DisplayHDR 400 |
| display_colours | 1.07 billion |
| inputs | HDMI 2.1 × 2, DisplayPort 1.4 × 1 |
| hdcp | HDMI 2.2 / DP 2.2 |
| wall_mount | 100 × 100 mm |
| stand_adjustment | Height 130 mm, Pivot ±90°, Swivel ±30°, Tilt -5° to 23° |
| dimensions_with_stand_mm | 386.0–516.0 H × 613.9 W × 239.9 D |
| weight_with_stand_kg | 5.78 |
| power_supply | Internal 100-240 V AC 1.5 A |
| power_consumption_w | 34 |
| colour | Black & Red |
| regulatory | BSMI / KC / KCC / e-Standby / RCM / MEPS / CE / RoHS |
| in_box | HDMI 2.1 Cable 1.8 m × 1, DP Cable 1.8 m × 1 |
