AOC U32G4 31.5" 4K 160Hz Fast IPS Gaming Monitor, Dual Refresh 320Hz
The AOC U32G4 is a 31.5-inch 4K Fast IPS gaming monitor that lets you choose between sharp 3840 × 2160 detail at 160Hz and ultra-smooth Full HD at 320Hz. It suits PC and console gamers who also want wide colour coverage for streaming, editing and everyday work.
Key features
- Dual Refresh Rate: switch between 4K at 160Hz for detailed single-player games and work, and FHD at 320Hz for fast competitive shooters.
- Fast IPS panel with 0.5ms MPRT (UHD) / 0.3ms MPRT (FHD): reduces motion blur so moving targets stay easier to track.
- VESA Certified DisplayHDR 400: up to 450 cd/m² in HDR (350 cd/m² SDR) for brighter highlights and more contrast in HDR games and video.
- Wide colour gamut: sRGB 119%, DCI-P3 95% and NTSC 104% coverage for vivid games and colour-rich content work.
- Fully adjustable stand: 130mm height adjustment, tilt, swivel and 90° pivot for portrait use, plus VESA 100 × 100 mounting.
Adaptive Sync, Low Input Lag mode, six game modes, AOC Game Color and Flicker-Free DC backlighting are also built in. Browse the full AOC monitor range to compare sizes and refresh rates.
Specifications
| Model | U32G4 (U32G4/75) |
| Screen size | 31.5 inch |
| Panel type | Fast IPS |
| Resolution and refresh rate | 3840 × 2160 (4K UHD) at 160Hz; 1920 × 1080 (FHD) at 320Hz |
| Response time (MPRT) | UHD 0.5ms / FHD 0.3ms |
| Brightness | 350 cd/m² (SDR) / 450 cd/m² (HDR) |
| HDR | VESA Certified DisplayHDR 400 |
| Contrast ratio | 1000:1 static / 80M:1 dynamic |
| Viewing angle (CR10) | 178° / 178° |
| Colour gamut | NTSC 104% (CIE1976) / sRGB 119% (CIE1931) / DCI-P3 95% (CIE1976) |
| Display colours | 16.7 million |
| Pixel pitch | 0.1818 mm |
| Viewing area | 698.11 × 392.69 mm |
| Video inputs | 2 × HDMI 2.1, 1 × DisplayPort 1.4 (HDCP 2.2) |
| Audio output | 3.5mm headphone out |
| Stand adjustment | Height 130mm, tilt -5° to 23°, swivel -20° to 20°, pivot -90° to 90° |
| VESA wall mount | 100 × 100 mm |
| Power supply | Internal, 100–240V 50/60Hz |
| Power consumption (typical) | 40W |
| Dimensions with stand (W × H × D) | 716.1 × 462–592 × 269.6 mm |
| Net weight with stand | 8.22 kg |
| Cabinet colour | Black, Red |
Who it's for
- Suited to: PC gamers who want one screen for 4K detail and high-refresh esports, console gamers using HDMI 2.1, and streamers or creators who value wide colour coverage on a large 31.5-inch panel.
- Not suited to: buyers who need a single-cable USB-C connection to a laptop, as the listed video inputs are HDMI and DisplayPort only. For a smaller, faster QHD option, see the AOC Q27G4SL/WS 27" 320Hz QHD monitor; for a compact esports screen, the AOC 24.5" 310Hz FHD gaming monitor.
FAQs
What does Dual Refresh Rate mean on the AOC U32G4?
It lets you switch the monitor between 4K resolution at 160Hz and Full HD at 320Hz. Use 4K for detailed visuals, work and video, and 320Hz FHD when you want the smoothest motion in fast games.
What connections does the U32G4 have?
It has two HDMI 2.1 ports, one DisplayPort 1.4 port and a 3.5mm headphone output. Both HDMI and DisplayPort support HDCP 2.2.
Can the U32G4 be wall mounted or rotated to portrait?
Yes. It supports VESA 100 × 100 mm wall or arm mounting, and the stand pivots 90° in either direction for portrait use, with 130mm of height adjustment.
Is the U32G4 HDR certified?
Yes, it is VESA Certified DisplayHDR 400. AOC lists brightness of 350 cd/m² in SDR and 450 cd/m² in HDR.
