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A 31.5 inch black curved gaming monitor on a tilt stand

HKC

HKC CG321QKS 31.5" 275Hz QHD Curved Gaming Monitor

SKU CH-Q0XP-YTZ4N MPN CG321QKS

A 31.5-inch curved VA panel delivers 2560 x 1440 resolution at 275 Hz with 1 ms response, 3000:1 contrast and 90% DCI-P3 colour

  • Cabinet ColorBlack
  • Screen Size31.5"
  • WidescreenYes
  • PanelVA
  • Display TypeQHD
  • Resolution2560 x 1440 (2K)
  • Smooth competitive motion from a 275 Hz refresh rate and 1 ms response
  • Deep 3000:1 contrast and 178° viewing angles on a 31.5" VA panel
  • Lifelike HDR highlights with VESA DisplayHDR 400 certification
  • Accurate colour for creative work covering 90 % DCI-P3
  • Flexible connectivity via two HDMI 2.0 and one DisplayPort 1.4

31.5" 275Hz Curved Gaming Monitor

The HKC CG321QKS is a 31.5-inch curved gaming monitor built around a VA panel with a 1000R curvature radius. It delivers a 2560 x 1440 QHD resolution at a 275Hz refresh rate and 1ms MPRT response time. The 16:9 display covers 90% DCI-P3 with a 3000:1 static contrast ratio for deep blacks and vivid colour.

Sustained 275Hz Refresh Performance

The panel maintains its 275Hz refresh rate during extended gaming sessions rather than only in short bursts. Combined with the 1ms MPRT response time and AMD FreeSync support, motion stays smooth and tear-free over long periods. The 300 cd/m² typical brightness and HDR10 support remain stable under continuous load.

DisplayPort 1.4 and HDMI 2.0 Bandwidth Limits

The single DisplayPort 1.4 connection provides the full bandwidth needed for 2560 x 1440 at 275Hz with HDR10. Each of the two HDMI 2.0 ports is limited to lower refresh rates at this resolution, so the highest performance requires the DisplayPort link. Both interfaces support the 90% DCI-P3 colour gamut and 16.7 million colours.

Highlights

  • Smooth competitive motion from a 275 Hz refresh rate and 1 ms response
  • Deep 3000:1 contrast and 178° viewing angles on a 31.5" VA panel
  • Lifelike HDR highlights with VESA DisplayHDR 400 certification
  • Accurate colour for creative work covering 90 % DCI-P3
  • Flexible connectivity via two HDMI 2.0 and one DisplayPort 1.4

Specifications

BrandHKC
ModelCG321QKS
Part NumberCG321QKS
Cabinet ColorBlack
Screen Size31.5"
WidescreenYes
PanelVA
Display TypeQHD
Resolution2560 x 1440 (2K)
Viewing Angle178° (H) / 178° (V)
Aspect Ratio16:9
Brightness300 cd/m2
Contrast Ratio3000:1
Response Time1 ms
Color GamutDCI-P3 90%
Display Colors16.7 Million
Monitor Pixel Density0.2724mm
Refresh Rate275Hz
HDR StandardHDR10
VESA Certified DisplayHDRDisplayHDR 400
Curved Surface ScreenCurved
Curvature Radius1000R
HDMI2 x HDMI 2.0
DisplayPort1 x DisplayPort 1.4
Video Ports1 x DisplayPort 1.4 / 2 x HDMI 2.0
Stand AdjustmentsTilt
Built-in SpeakersNo
Built-in WebcamNo
VESA Compatibility - Mountable75 x 75mm
Dimensions704.62mm X 135.85mm X 422.35mm
Weight6.8 kg
Shipping weight9.25 kg
Package size838 × 508 × 229 mm

Questions about this item

Will my graphics card drive the 275 Hz refresh rate at 2560 x 1440?

Use the included 1.5 m DisplayPort 1.4 cable; the monitor accepts 275 Hz over DisplayPort 1.4 and 260 Hz over each HDMI 2.0 port.

Can I mount the screen on a monitor arm or wall bracket?

Yes, the rear has a 75 x 75 mm VESA pattern; remove the stand and attach any compatible arm or bracket.

Does the panel produce deep blacks for dark-room gaming?

The VA panel delivers a 3000:1 static contrast ratio, giving much deeper blacks than typical IPS displays.

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