AOC Q27G4KD 26.5" QD-OLED Gaming Monitor QHD 500Hz 0.03ms | DisplayHDR True Black 500 | HDMI 2.1 ×2 | DP 2.1 | Adaptive Sync
Description
The AOC Q27G4KD is a flagship-class 26.5/27-inch QD-OLED esports monitor built for ultra-high-refresh competitive gaming. It combines QHD 2560 × 1440, a blistering 500Hz refresh rate, 0.03ms GtG response time, VESA DisplayHDR True Black 500, HDMI 2.1 ×2, DisplayPort 2.1, Adaptive Sync, and a fully ergonomic stand.
| Specification | Details |
|---|---|
| Brand | AOC |
| Model | Q27G4KD |
| Screen Size | 27" class / 26.5" viewable |
| Panel Type | QD-OLED |
| Resolution | 2560 × 1440 QHD |
| Refresh Rate | Up to 500Hz |
| Response Time | 0.03ms GtG |
| Aspect Ratio | 16:9 |
| HDR | VESA DisplayHDR True Black 500 |
| Adaptive Sync | Yes |
| Color | Black / Red accents |
The QD-OLED panel supports 1.07 billion colors, 99% DCI-P3, 100% sRGB, and 178°/178° viewing angles, delivering deep blacks, wide color coverage, and very fast pixel transitions. Typical SDR brightness is listed at 300 nits, with HDR brightness around 515 nits at 10% APL and up to 1000 nits at 1.5% APL.
500Hz Esports Performance
The headline feature is the 500Hz refresh rate, paired with 0.03ms GtG response time for extremely fluid motion and very low persistence blur. AOC positions this model specifically for professional-level esports and high-frame-rate competitive gaming.
Key benefits include ultra-smooth target tracking, fast frame delivery, reduced motion blur, responsive controls, and strong performance in titles such as Counter-Strike 2, Valorant, Overwatch 2, Fortnite, Apex Legends, and other high-FPS esports games.
DisplayHDR True Black 500
The monitor supports VESA DisplayHDR True Black 500, combining OLED-level black depth with bright HDR highlights and strong contrast. AOC also lists graphene-based cooling to help manage panel temperatures and support sustained OLED performance.
Connectivity
| Port | Quantity |
|---|---|
| HDMI 2.1 | 2 |
| DisplayPort 2.1 | 1 |
| USB-A | 2 downstream |
| USB upstream | Yes |
| 3.5mm Headphone Out | 1 |
The DisplayPort 2.1 connection supports UHBR20 up to 80Gbps, while HDMI 2.1 supports FRL6 up to 48Gbps. QHD 500Hz is supported through the appropriate high-bandwidth connection/settings, including DSC where required.
Gaming Features
AOC lists gaming-focused tools including Adaptive Sync, Low Input Lag, Game Mode, Dark Boost, Sniper Scope, Shadow Control, six-axis color adjustment, and Picture-by-Picture / Picture-in-Picture functionality.
Ergonomic Stand
The Q27G4KD includes a fully adjustable ergonomic stand:
| Adjustment | Range |
|---|---|
| Height | 130 mm |
| Tilt | -5° to +23° |
| Swivel | -30° to +30° |
| Pivot | -90° to +90° |
| VESA Mount | 100 × 100 mm |
Eye Comfort
Comfort-oriented features include:
- Flicker-Free
- Anti-Blue Light
- TÜV Low Blue Light certification
- TÜV Rheinland Flicker-Free certification
Dimensions & Weight
| Specification | Details |
|---|---|
| With Stand | 609.3 × 407.7–537.7 × 240.0 mm |
| Without Stand | 609.3 × 357.7 × 54.97 mm |
| Package | 820 × 481 × 159 mm |
| Net Weight | 6.54 kg |
| Without Stand | 5.08 kg |
| Gross Weight | 9.75 kg |
Power
| Specification | Details |
|---|---|
| Input | 100–240V AC, 50/60Hz |
| Typical Consumption | 85W |
| Maximum | ≤115W |
| Standby | ≤0.5W |
Main Product Highlights
- 26.5"/27" QD-OLED
- 2560 × 1440 QHD
- 500Hz Refresh Rate
- 0.03ms GtG
- DisplayHDR True Black 500
- 99% DCI-P3
- 1.07 Billion Colors
- Adaptive Sync
- HDMI 2.1 ×2
- DisplayPort 2.1 ×1
- USB Hub
- 130mm Height Adjustment
- Swivel, Pivot & Tilt
- 100 × 100 mm VESA
- Graphene Cooling
- Flicker-Free + Anti-Blue Light
