AOC Q27G40ZDF 27″ 240Hz Monitor

27 inch · 2560 x 1440 · 240 Hz · OLED

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Screen size 27 inch
Resolution 2560 x 1440
Refresh rate 240 Hz
Panel OLED
Response time 0.03 ms

AOC Q27G40ZDF 27″ 240Hz Monitor is a 27-inch monitor with 2560 x 1440 resolution, a 240 Hz refresh rate and OLED panel. The high refresh rate makes fast games look smoother. It came out in 2025.

Released: 2025-12-22

Specifications

Key specs

Screen size: 27 inch
Resolution: 2560 x 1440
Refresh rate: 240 Hz
Panel: OLED
Response time: 0.03 ms
Released: 2025-12-22
Part number: Q27G40ZDF

Display

Display diagonal: 67.3 cm (26.5")
Display resolution: 2560 x 1440 pixels
HD type: Quad HD
Native aspect ratio: 16:9
Display technology: QD-OLED
Panel type: OLED
Display brightness (peak): 400 cd/m²
Display brightness (typical): 200 cd/m²
Response time: 0.03 ms
Response time measurement type: GTG (Gray to Gray)
Anti-glare screen: Yes
Screen shape: Flat
Contrast ratio (dynamic): 1500000:1
Maximum refresh rate: 240 Hz
Viewing angle, horizontal: 178°
Viewing angle, vertical: 178°
Display number of colours: 1.07 billion colours
Pixel pitch: 0.2292 x 0.2292 mm
Viewable size, horizontal: 59 cm
Viewable size, vertical: 33.4 cm
High Dynamic Range (HDR) supported: Yes
High Dynamic Range (HDR) technology: High Dynamic Range 10 (HDR10)
sRGB coverage (typical): 100%
DCI-P3 coverage: 99%

Design

Market positioning: Gaming
Product colour: Black, Red

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Ports & interfaces

HDMI: Yes
HDMI ports quantity: 1
HDMI version: 2.0
DisplayPorts quantity: 1
DisplayPort out version: 1.4
Headphone out: Yes
HDCP: Yes
HDCP version: 2.3

Ergonomics

VESA mounting: Yes
Panel mounting interface: 100 x 100 mm
Wall mountable: Yes
Tilt adjustment: Yes
Tilt angle range: -5 - 23°

Power

Power consumption (typical): 63 W
AC input voltage: 100 - 240 V
AC input frequency: 50/60 Hz

Weight & dimensions

Width (with stand): 609.3 mm
Depth (with stand): 192.2 mm
Height (with stand): 454.3 mm
Weight (with stand): 4.96 kg
Width (without stand): 609.3 mm
Depth (without stand): 57 mm
Height (without stand): 355.3 mm
Weight (without stand): 4.11 kg

Other features

Certification: RoHS / BSMI / RCM / MEPS / PSE / VCCI / J-moss / PC-recycle / CE / CB / FCC / VESA ClearMR 13000

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About this product

The Q27G40ZDF is built for speed, clarity, and immersion. Its 27" QHD QD OLED panel delivers breathtaking color accuracy and deep contrast, while a blistering 240Hz refresh rate and ultra fast 0.03ms response time ensure every frame is razor sharp. Adaptive Sync eliminates tearing for fluid motion, and HDR10 support brings lifelike highlights and shadows to your favorite titles. Features like Dial Point, Sniper Scope, and adjustable game modes provide deep customization—letting you fine tune aim, visibility, and settings to optimize gameplay exactly the way you want. Designed for competitive edge and cinematic immersion alike, this monitor pulls you deeper into every world you play. The Pinnacle of Display Innovation QD-OLED harnesses the power of quantum dots to achieve unparalleled color accuracy and brightness. Unlike traditional displays, QD-OLED leverages quantum dots that emit their own light, enabling a wide range of precise colors at an exceptional contrast ratio. With blue light as its source and a QD light-emitting layer that breathes life into colors, QD-OLED achieves remarkable luminance while preserving high color purity and a wide color gamut.

Q27G40ZDF vs similar monitors

	AOC Q27G40ZDF 27″ 240Hz Monitor	AOC AG276QZD/69 27″ 240Hz Monitor	AOC G4 Q27G4ZDRAD 27″ 240Hz Monitor	ASUS ROG Strix XG27AQDMES-R 27″ 240Hz Monitor
Screen size	27 inch	27 inch	27 inch	27 inch
Resolution	2560 x 1440	2560 x 1440	2560 x 1440	2560 x 1440
Refresh rate	240 Hz	240 Hz	240 Hz	240 Hz
Panel	OLED	OLED	OLED	OLED
Response time	0.03 ms	0.03 ms	0.03 ms	0.03 ms
Released	2025	2026	2026	2026