AOC CQ27G4S 27" Dual-Mode QHD 320Hz / HD 400Hz Curved Fast VA Gaming Monitor
PRODUCT DESCRIPTION
AOC CQ27G4S 27" Dual-Mode QHD 320Hz / HD 400Hz Curved Fast VA Gaming Monitor - 3 years parts & labour warranty
Dual-mode speed
A 27" 1500R curved Fast VA panel running 2560 x 1440 at 320 Hz (OC) or 1280 x 720 at 400 Hz, with 0.3 ms MPRT / 1 ms GtG response and Adaptive Sync.
HDR 400 and vivid colour
VESA DisplayHDR 400 with 350 cd/m² typical and 450 cd/m² peak HDR brightness, 1.07 billion colours, 124% sRGB and 101% DCI-P3 coverage, and 5000:1 typical contrast.
Gamer settings
Shadow Control, Clear Vision Pro, 6-axis colour saturation/hue, Game Mode and Low Input Lag help you tune the picture for every title.
Comfort and adjustability
Flicker Free and Anti-Blue Light for long sessions, on a stand with 120 mm height adjustment, -5° to 23° tilt and ±30° swivel, plus 100 x 100 VESA.
Need monitors for a whole office, classroom or gaming room? Email sales@sourceit.com.sg for volume pricing and delivery lead time.
AOC CQ27G4S Datasheet — Technical Specifications
General
| Product Name | AOC CQ27G4S 27" Dual-Mode QHD 320Hz / HD 400Hz Curved Fast VA Gaming Monitor |
| Model | CQ27G4S |
| Brand / Series | AOC GAMING |
| Local Warranty (Singapore) | 3 years parts & labour warranty (AOC Singapore, serviced by MPGS Singapore) |
| EAN | 6973985233852 |
Display
| Screen size | 27 inch, curved 1500R |
| Panel type | Fast VA |
| Panel resolution | 2560 x 1440 (QHD) |
| Aspect ratio | 16:9 |
| Max refresh rate | 320 Hz OC (2560 x 1440), 400 Hz (1280 x 720) |
| Response time | 0.3 ms (MPRT) / 1 ms (GtG) |
| Brightness | 350 cd/m² (typical) / 450 cd/m² (peak HDR) |
| Contrast ratio | 5000:1 (typical) / MEGA DCR |
| Viewing angle | 178° (H) / 178° (V) (CR > 10) |
| Display colours | 1.07 Billion |
| Colour gamut | sRGB 124% (CIE1931) / DCI-P3 101% (CIE1976) |
Video Features
| Sync technology (VRR) | Adaptive Sync |
| Dual refresh rate | Yes |
| HDR | VESA DisplayHDR 400 |
| Picture features | Shadow Control, Clear Vision Pro, 6-axis colour saturation/hue, Game Mode, Low Input Lag |
| Eye comfort | Flicker Free, Anti-Blue Light |
Connectivity
| HDMI | HDMI 2.1 x 2 |
| DisplayPort | DisplayPort 1.4 x 1 |
| HDCP | HDMI: 2.2 / DisplayPort: 2.2 |
| USB-C | No |
| USB hub | No |
Ergonomics & Cabinet
| Height adjust | 120 mm |
| Tilt | -5° / 23° |
| Swivel | -30° / 30° |
| Pivot | No |
| VESA wall mount | 100 x 100 mm |
| Speakers | No |
Dimensions & Weight
| Product with stand (H x W x D) | 396.4~516.4 × 611.5 × 239.4 mm |
| Product without stand (H x W x D) | 367.64 × 611.5 × 78.7 mm |
| Packaging (H x W x D) | 480 × 840 × 186 mm |
| Product with stand | 5.39 kg |
| Product without stand | 3.93 kg |
| Product with packaging | 8 kg |
Specifications per AOC Singapore's official store page for the CQ27G4S (sgstore.aoc.com).
Compatibility & Connectivity
Video Inputs
HDMI 2.1 x 2 and DisplayPort 1.4 x 1. Connect a PC graphics card for QHD at 320 Hz or HD at 400 Hz; HDMI 2.1 also suits consoles.
Graphics Cards
Adaptive Sync works with compatible AMD and NVIDIA graphics cards to cut tearing and stutter.
Mounting
VESA 100 x 100 mm compatible for monitor arms and wall brackets.
Package Contents & AOC Gaming Monitors Ordering Information
In the Box
CQ27G4S monitor with stand, power cable, signal cable and quick start guide. Cable types vary by AOC Singapore pack — email us to confirm before ordering.
AOC Gaming Monitors
| Model | Key feature |
| 24G4ZR | 23.8", FHD, Fast IPS, 260Hz(OC), HDR10 |
| CS24A/P | 24.1", FHD, E-Sport TN, 610Hz, HDR400 |
| 25G4S | 24.5", FHD, Fast IPS, 310Hz, HDR400 |
| 25G4K | 24.5", FHD, Fast IPS, 420Hz, HDR400 |
| Q25G4S | 24.5", QHD, Fast IPS, 320Hz, HDR400 |
| CS25G | 24.5", FHD, Fast IPS, 310Hz(OC), HDR400 |
| AG276FK | 27", FHD, Fast IPS, 520Hz, HDR400 |
| U27G4 | 27", Dual: FHD-320Hz, UHD-160Hz, Fast IPS, HDR400 |
| CQ27G4S (this listing) | 27", Dual: HD-400Hz OC, QHD-320Hz OC, Curved 1500R, Fast VA, HDR400 |
| 27G4H | 27", FHD, Fast IPS, 200Hz, HDR10 |
| 27G11ZE2 | 27", FHD, Fast IPS, 240Hz, HDR10 |
| 27G4ZR | 27", FHD, Fast IPS, 260Hz(OC), HDR10 |
| AG275QXW | 27", QHD, Fast IPS, 180Hz, HDR400, White |
| Q27G4/D | 27", QHD, Fast IPS, 200Hz, HDR400 |
| Q27G4/WS | 27", QHD, Fast IPS, 200Hz, HDR400, White |
| Q27G4S | 27", QHD, Fast IPS, 300Hz, HDR400 |
| Q27G4SL/WS | 27", QHD, Fast IPS, 320Hz, HDR400, White |
| Q27G4XY | 27", QHD, Fast VA, 180Hz, HDR400, USB-C 65W, Google Smart OS |
| Q27B36X | 27", QHD, IPS, 144Hz, HDR10 |
| U27G4XM | 27", Dual: FHD-320Hz, UHD-160Hz, Mini-LED, Fast IPS, HDR1000 |
| AG275UXM | 27", UHD, Mini-LED (QD), Fast IPS, 165Hz, HDR1000 |
| U32G4 | 31.5", Dual: FHD-320Hz, UHD-160Hz, Fast IPS, HDR400 |
| AGP327UZD | 31.5", Dual: FHD-480Hz, UHD-240Hz, W-OLED, HDR400, USB-C 65W |
| CQ32G4 | 31.5", QHD, Curved 1500R, Fast VA, 180Hz, HDR10 |
| Q32V5E | 31.5", QHD, IPS, 100Hz, HDR10 |
| U32G4ZMN | 31.5", UHD, Mini-LED, Fast VA, 165Hz |
| CU34G4Z | 34", WQHD, Curved 1500R, Fast VA, 240Hz, HDR400 |
| AG344UXM | 34", WQHD, Mini-LED (QD), 170Hz, HDR1000, USB-C 90W |
| AG493UCX2 | 49", DQHD, Curved 1800R, VA, SuperWide 32:9, 165Hz, HDR400 |
Datasheet & Downloads
| AOC product page | CQ27G4S on aoc.com |
Need a PDF sent directly? Email sales@sourceit.com.sg quoting CQ27G4S.
Frequently Asked Questions — AOC CQ27G4S
What refresh rates does the CQ27G4S support?
Dual mode: 2560 x 1440 at 320 Hz (OC) or 1280 x 720 at 400 Hz, with 0.3 ms MPRT / 1 ms GtG response.
Is the stand adjustable?
Yes: 120 mm height adjustment, -5° to 23° tilt and ±30° swivel. The stand does not pivot.
Does it have built-in speakers?
No, it has no built-in speakers, USB-C or USB hub.
Can I wall-mount it?
Yes, it supports 100 x 100 mm VESA mounting.
What warranty do I get?
3 years parts & labour warranty (AOC Singapore, serviced by MPGS Singapore). Supplied by SourceIT with a GST invoice.
