AOC Q27G40XMN - a 27 inch 1440p MiniLED panel with Quantum Dot colour, 180Hz and 1200 nits of HDR brightness.
The Q27G40XMN is a 27 inch monitor with a 2560x1440 QHD Fast VA panel using a MiniLED backlight and a Quantum Dot layer, running at 180Hz. Response is 1ms GtG (0.5ms MPRT), static contrast 5000:1, brightness 450 cd/m2 in SDR and 1200 cd/m2 in HDR, with colour coverage of 148% sRGB and 119% DCI-P3 - the wide gamut the Quantum Dot layer is there for. Adaptive Sync and HDR10 are supported, and the stand tilts -3 to 21 degrees on a VESA 100x100 mount. Inputs are one HDMI 2.0 and one DisplayPort 1.4 with a 3.5mm headphone output; the bezel is three-sided frameless.
Key Features
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QHD 2560x1440 on 27 inches — The resolution and size where text stays crisp at native scaling without a second graphics card.
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MiniLED backlight with Quantum Dot — 1200 nits peak in HDR and 148% sRGB / 119% DCI-P3, so HDR highlights land and colour stays saturated.
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5000:1 static contrast — Deep blacks from the VA panel - the reason to pick it over an IPS at this price.
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180Hz with Adaptive Sync — High refresh for shooters, matched to the GPU to remove tearing.
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1ms GtG / 0.5ms MPRT — Fast panel response, so motion does not smear behind the frame.
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HDMI 2.0 + DisplayPort 1.4 — Console and PC can both stay connected, with a headphone output for late sessions.
Specifications
| Screen Size |
27.0 |
| Resolution |
2560x1440 |
| Panel Type |
Fast VA with Quantum Dot |
| Refresh Rate |
180 Hz |
| Response Time |
1 ms GtG |
| Response Time (MPRT) |
0.5 ms |
| Static Contrast |
5000:1 |
| Brightness |
450 cd/m² (SDR) / 1200 cd/m² (HDR) |
| Colour Coverage |
NTSC 130% (CIE1976) / sRGB 148% (CIE1931) / DCI-P3 119% (CIE1976) |
| Viewing Angles |
178/178 |
| Adaptive Sync |
Adaptive Sync |
| HDR |
HDR 10 |
| Inputs |
HDMI 2.0 x 1 + DisplayPort 1.4 x 1 |
| Audio Output |
Headphone out (3.5mm) |
| VESA Mount |
100x100 |
| Tilt |
-3° ±2° ~ 21° ±2° |
| Dimensions (with stand) |
613.9 x (386.0~516.0) x 207.7mm |
| Dimensions (without stand) |
613.9 x 366.3 x 51.3mm |
| Net Weight |
5.11kg |
| Power Consumption |
32.0W typical |
| Warranty |
3 YR Warranty |
Who it's for
A desk that wants one screen for work and gaming - 1440p for spreadsheets and video, 180Hz and real HDR for games, with the contrast of a VA panel.
Promotional price — valid until 1 November 2026. Was $449, now $359.
Fast dispatch from local stock. Sydney local pickup & delivery available, plus Australia-wide free shipping.
