CUNPU GN05AC 27" WQHD 240Hz VA gaming monitor
A 27-inch WQHD VA gaming monitor with a 240 Hz refresh rate, 1 ms response time and Adaptive Sync for fluid competitive play
- Screen size27 in (68.6 cm)
- Display resolution2560 × 1440 (2K)
- Refresh frequency240 Hz
- Panel typeVA
- Pixel response time1 ms
- HDR formatHDR10
Refresh Rate 240
- 100$48.99
- 165$201.99
- 200$144.99
- 240$154.99
Resolution 1440p
- 1080p$62.99
- 1440p$154.99
- True-to-life colours with 100% sRGB and 90% DCI-P3 gamut
- Deep contrast from 3000:1 DCR on a VA panel
- Competitive 240Hz refresh with 1ms response for smooth motion
- Adaptive Sync prevents tearing across 120Hz to 240Hz ranges
- Three-sided frameless 27" WQHD screen suits multi-monitor setups
27-inch WQHD VA gaming monitor
The CUNPU GN05AC is a 27-inch gaming monitor built on a VA panel with a 2560 x 1440 resolution. It targets players who want high refresh rates and strong contrast in a frameless design. The 16:9 aspect ratio and 178-degree viewing angles suit both competitive and immersive titles.
240 Hz refresh rate with 1 ms response
The single specification that decides fit is the 240 Hz maximum refresh rate paired with a 1 ms grey-to-grey response time. Adaptive Sync (FreeSync) keeps frame delivery smooth across 240 Hz, 200 Hz, 165 Hz, 144 Hz, 120 Hz and 100 Hz modes. Buyers whose graphics card cannot sustain frame rates above 144 Hz at 1440p will not use the panel’s full capability.
Sustained 300 cd/m² brightness and 3000:1 DCR
Under continuous load the monitor maintains 300 cd/m² typical brightness and a 3000:1 dynamic contrast ratio. The VA panel covers 99 percent sRGB and 90 percent DCI-P3 without colour shift during long sessions. No local-dimming or HDR peak-brightness figures are provided, so extended HDR content relies on the static contrast performance alone.
How it compares
Measured against everything we stock in Monitors for Gamers, at today’s prices. Recalculated every night.
- Price $154.99
- Cheaper than about 63% of the 839 comparable items (median $189.99).
- Screen size 27 in (68.6 cm)
- Typical for this category: the median of 814 items is 27 in.
- Refresh frequency 240 Hz
- Higher than about 70% of the 735 comparable items (median 180 Hz).
Specifications
| Product | |
|---|---|
| Model name | GN05AC |
| Case color | Black |
| Cosmetic grade | Grade A |
| Display | |
| Screen size | 27 in (68.6 cm) |
| Display resolution | 2560 × 1440 (2K) |
| Refresh frequency | 240 Hz |
| Panel type | VA |
| Pixel response time | 1 ms |
| HDR format | HDR10 |
| Image brightness | 300 cd/m2 |
| Screen curvature | Flat Panel |
| Bezel style | 3 Sided Frameless |
| Widescreen format | Yes |
| Screen finish | Yes |
| Backlight | Yes |
| Display format | QHD |
| Variable refresh rate | FreeSync (AMD Adaptive Sync) |
| Highest resolution | 2560 × 1440 |
| Viewing angles | 178° (H) / 178° (V) |
| Screen ratio | 16:9 |
| Color gamut coverage | sRGB 99% |
| Colors displayed | 16.7 Million |
| Horizontal scan rate | 240 Hz |
| Vertical frequency | 240 Hz |
| Audio & video | |
| Integrated webcam | No |
| Ports & slots | |
| Connection types | HDMI, DisplayPort, Audio |
| HDMI ports | 2 x HDMI 2.0 |
| DisplayPort connectors | 1 x DisplayPort 1.4 |
| Video connectors | 2 x HDMI 2.0 |
| Power | |
| Power draw | 65 W |
| Size & build | |
| Stand adjustability | Tilt |
| VESA mounting pattern | 75 × 75 mm |
| Product weight | 7.94 lb (3.6 kg) |
| In the box | |
| In the box | Monitor x1,DP1.4 cable x1,Power adapter x1, User Manual x1 |
Other versions of this model
5 more in the same range
CUNPU G2411P 24" 200Hz Fast IPS gaming monitor
- 24 in (61 cm)
- 3 Sided Frameless
CUNPU M27U2200AC 27" 2560x1440 200Hz gaming monitor
- 27 in (68.6 cm)
- 2560 × 1440
CUNPU 32G165A 32" 165Hz QHD gaming monitor
- 32 in (81.3 cm)
- 2560 × 1440
Questions about this item
How does the 240 Hz refresh rate translate to actual gameplay smoothness?
The panel refreshes 240 times per second and supports compatible lower rates such as 200 Hz, 165 Hz, 144 Hz, 120 Hz and 100 Hz, so fast motion in FPS or RTS titles stays fluid without tearing when paired with a GPU that can drive those frame rates.
What adaptive-sync standard does the monitor use and what refresh range does it cover?
It uses AMD FreeSync adaptive sync, which works across the panel's full variable refresh range up to the native 240 Hz ceiling to eliminate stutter and tearing when the graphics card output fluctuates.
What VESA mount pattern and stand adjustments are available for installation?
The monitor is VESA compatible for wall or arm mounting and the included stand provides tilt adjustment; the cabinet features a three-sided frameless bezel for minimal gaps in multi-monitor layouts.
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