Screen size (inch) 34, Panel resolution 3440x1440, Max Refresh rate 250 Hz, Response time MPRT 0.3 ms, Panel type Fast VA, USB-C connectivity USB-C 3.2 x 1 (DP alt mode, upstream, power delivery up to 90 W), HDMI HDMI 2.1 x 2, DisplayPort DisplayPort 1.4 x 1, Sync technology (VRR) Adaptive Sync

Reasons To Buy

Wide QHD (WQHD) Resolution

With 3440 x 1440 resolution, Wide Quad HD (WQHD) offers superior picture quality and crisp imagery that reveals every detail. The widescreen 21:9 aspect ratio is perfect for watching movies in an expansive format or immersing yourself in the latest game, plus it offers more space when it’s time to work. True 8-bit color provides a broad color palette for vibrant, natural-looking images.

1500R Curved

Curved design wraps around you putting you at the center of the action and provides an immersive gaming experience.

250Hz Refresh Rate

Whether you immerse yourself in fast action movies, edit quick-moving videos or play competitive games, less blurry motion and fast screen response create smooth, realistic pictures that show you what a truly clear display looks like.

Fast VA

Immerse yourself in a world of deeper blacks and striking contrast. Vivid, bright visuals bring your games to life like never before.

Vesa Certified DisplayHDRTM 400

Even the lowest level of High Dynamic Range (HDR) feature poses a significant upgrade to common monitors. The peak luminance of 400 cd/m2 enables your display to hone the picture quality with a manifold colour spectrum and more diverse contrast. The VESA-certificate ensures richness of detail and realistic portrayals of game and film worlds.

Adaptive sync

Adaptive Sync aligns your monitor’s vertical refresh rate with the frame rate delivered by your GPU, making your gameplay and casual gaming experience even more fluid by eliminating stuttering, tearing and judder. This feature is also useful when enjoying videos and other visual media, for a smoother entertainment.

Power Delivery 90W

Streamline your workspace with the 90W USB-C Power Delivery and docking feature. Charge your laptop, transfer data, and connect peripherals through a single cable, delivering a clutter-free, efficient setup for enhanced productivity.

KVM

Share one single keyboard, mouse and monitor between multiple computers with KVM switch hardware.

USB Hub

Built-in USB hubs in AOC’s monitors bring ease of use and practicality to your desk. Side mounted ports are easily reachable without even looking at them; negating time wasted searching the backside of a PC case to find a free USB port.

HDMI 2.1

The latest standard in HDMI technology further boosts higher refresh rates and resolution. This not only opens new doors for watching content, but also for gamers: HDMI 2.1 enables next generation consoles to reach their maximum performance.

ERGONOMIC DESIGN

Ergonomic stand to maintain comfort and prevent strain during long gaming sessions. It offers a wide range of motion and easy height, tilt, and swivel adjustments, accommodating the proper ergonomics and your personal preferences.

GMENU

AOC G-Menu is a free tool that you can install on your PC to have complete customization paired with maximum convenience.

Description

34" curved WQHD ultrawide gaming monitor with 250Hz Fast VA speed and ultra-immersive 21:9 gameplay
Designed for ultra-fluid gaming and total immersion, the CU34G4ZCA combines a 34-inch WQHD 21:9 ultrawide display with a dramatic 1500R curve that pulls you deeper into every race, battle and open-world environment. Its ultra-fast 250Hz refresh rate and 1ms GtG Fast VA panel deliver exceptionally smooth motion and rapid responsiveness, helping competitive players track movement more accurately and react instantly during high-speed gameplay. HDR400 support brings greater depth to shadows, highlights and environmental detail, creating a richer and more atmospheric visual experience across both competitive and cinematic titles.

Specifications

Audio
Built-in speaker(s)	Yes
RMS rated power	10 W
Performance
Built-in speaker(s)	Yes
RMS rated power	10 W
Low Blue Light technology	Yes
Flicker-free technology	Yes
Brand specific technologies	Crosshair
Low input lag	Yes
FPS counter	Yes
Dial point	Yes
Shadow control	Yes
Motion blur reduction	Yes
Display
Screen shape	Curved
Display number of colours	16.7 million colours
Native aspect ratio	21:9
Pixel density	109.7 ppi
Maximum refresh rate	250 Hz
sRGB coverage (typical)	132.6%
Adobe RGB coverage	88.9%
Viewing angle, horizontal	178°
Viewing angle, vertical	178°
Pixel pitch	0.23175 x 0.23175 mm
Backlight type	W-LED
Display resolution	3440 x 1440 pixels
Response time	1 ms
Display diagonal	86.4 cm (34")
Contrast ratio (typical)	2500:1
High Dynamic Range (HDR) supported	Yes
Panel type	Fast VA
DCI-P3 coverage	95.3%
High Dynamic Range (HDR) technology	DisplayHDR 400
Screen curvature rating	1500R
Display diagonal (metric)	86.4 cm
LED backlight	Yes
Colour gamut standard	Adobe RGB, DCI-P3, sRGB
Response time measurement type	GTG (Gray to Gray)
Response time (MPRT)	0.3 ms
Anti-glare screen	Yes
Management features
On Screen Display (OSD)	Yes
On Screen Display (OSD) languages	Simplified Chinese, Traditional Chinese, Czech, Dutch, English, Finnish, French, German, Italian, Japanese, Korean, Croatian, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, Ukrainian
Picture-in-Picture	Yes
Multimedia
Number of speakers	2
Built-in speaker(s)	Yes
RMS rated power	10 W
Design
Product colour	Black, Red
Front bezel colour	Black
Bezel thickness type	Frameless
Ports & interfaces
Built-in USB hub	Yes
Headphone out	Yes
HDMI ports quantity	2
DisplayPorts quantity	1
Headphone connectivity	3.5 mm
HDMI	Yes
HDMI version	2.1
DisplayPort version	1.4
USB Type-C DisplayPort Alternate Mode	Yes
Technical details
Cable lock slot	Yes
HDMI	Yes
Product colour	Black, Red
Front bezel colour	Black
Warranty period	3 year(s)
Power supply type	Internal
Weight (with stand)	8.6 kg
Ergonomics
VESA mounting	Yes
Cable lock slot	Yes
Panel mounting interface	100 x 100 mm
Swivelling	Yes
Swivel angle range	20 - 20°
Tilt angle range	3.5 - 21.5°
On Screen Display (OSD)	Yes
On Screen Display (OSD) languages	Simplified Chinese, Traditional Chinese, Czech, Dutch, English, Finnish, French, German, Italian, Japanese, Korean, Croatian, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, Ukrainian
Picture-in-Picture	Yes
Height adjustment	Yes
Cable lock slot type	Kensington
Tilt adjustment	Yes
Adjustable height (max)	13 cm
Power
Power supply type	Internal
Power consumption (standby)	0.5 W
Power consumption (typical)	31 W
Power consumption (off)	0.5 W
Weight & dimensions
Width (with stand)	808.1 mm
Weight (with stand)	8.6 kg
Weight (without stand)	6.38 kg
Package weight	12.1 kg
Packaging data
Package weight	12.1 kg
Cables included	AC, HDMI, DisplayPort, USB, USB Type-C
Packaging content
Cables included	AC, HDMI, DisplayPort, USB, USB Type-C
Other features
DCI-P3 coverage	95.3%
Bezel thickness type	Frameless
Warranty period	3 year(s)
Brand specific technologies	Crosshair
Low input lag	Yes
FPS counter	Yes
Dial point	Yes
Shadow control	Yes
Motion blur reduction	Yes
HDMI	Yes
USB Type-C DisplayPort Alternate Mode	Yes
Power supply type	Internal
Front bezel colour	Black