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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

  • Screen size31.5 in (80 cm)
  • Display resolution2560 × 1440 (2K)
  • Refresh frequency275 Hz
  • Panel typeVA
  • Pixel response time1 ms
  • HDR formatHDR10
  • 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.

How it compares

Measured against everything we stock in Monitors for Gamers, at today’s prices. Recalculated every night.

Price $223.99
Pricier than about 60% of the 839 comparable items (median $189.99).
Screen size 31.5 in (80 cm)
Higher than about 79% of the 814 comparable items (median 27 in).
Refresh frequency 275 Hz
Higher than about 86% of the 735 comparable items (median 180 Hz).

Specifications

Product
Brand nameHKC
Model nameCG321QKS
Part numberCG321QKS
Case colorBlack
Display
Screen size31.5 in (80 cm)
Display resolution2560 × 1440 (2K)
Refresh frequency275 Hz
Panel typeVA
Pixel response time1 ms
HDR formatHDR10
Image brightness300 cd/m2
Screen curvatureCurved
Widescreen formatYes
Display formatQHD
Viewing angles178° (H) / 178° (V)
Screen ratio16:9
Contrast3000:1
Color gamut coverageDCI-P3 90%
Colors displayed16.7 Million
Pixel pitch0.2724 mm
DisplayHDR certificationDisplayHDR 400
Audio & video
Integrated speakersNo
Integrated webcamNo
Ports & slots
HDMI ports2 x HDMI 2.0
DisplayPort connectors1 x DisplayPort 1.4
Video connectors1 x DisplayPort 1.4 / 2 x HDMI 2.0
Size & build
Stand adjustabilityTilt
VESA mounting pattern75 × 75 mm
Product dimensions704.62 mm × 135.85 mm × 422.35 mm
Product 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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