AOC G4 CU34G4ZCA 34″ 250Hz Monitor

34 inch · 3440 x 1440 · 250 Hz · Fast VA

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Screen size 34 inch
Resolution 3440 x 1440
Refresh rate 250 Hz
Panel Fast VA
Response time 1 ms

AOC G4 CU34G4ZCA 34″ 250Hz Monitor is a 34-inch monitor with 3440 x 1440 resolution, a 250 Hz refresh rate and Fast VA panel. The high refresh rate makes fast games look smoother. It came out in 2026.

Released: 2026-06-04

Specifications

Key specs

Screen size: 34 inch
Resolution: 3440 x 1440
Refresh rate: 250 Hz
Panel: Fast VA
Response time: 1 ms
Released: 2026-06-04
Part number: CU34G4ZCA
EAN / UPC: 4038986113502

Display

Display diagonal: 86.4 cm (34")
Display resolution: 3440 x 1440 pixels
HD type: Wide Quad HD
Native aspect ratio: 21:9
Panel type: Fast VA
LED backlight: Yes
Backlight type: W-LED
Display brightness (typical): 400 cd/m²
Response time: 1 ms
Response time measurement type: GTG (Gray to Gray)
Response time (MPRT): 0.3 ms
Anti-glare screen: Yes
Screen shape: Curved
Screen curvature rating: 1500R
Contrast ratio (typical): 2500:1
Maximum refresh rate: 250 Hz
Viewing angle, horizontal: 178°
Viewing angle, vertical: 178°
Display number of colours: 1.07 billion colours
Pixel pitch: 0.23175 x 0.23175 mm
Pixel density: 109.7 ppi
Display diagonal (metric): 86.4 cm
High Dynamic Range (HDR) supported: Yes
High Dynamic Range (HDR) technology: DisplayHDR 400
Colour gamut standard: Adobe RGB, DCI-P3, sRGB
sRGB coverage (typical): 132.6%
Adobe RGB coverage: 88.9%
DCI-P3 coverage: 95.3%

Performance

Flicker-free technology: Yes
Low Blue Light technology: Yes

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Multimedia

Number of speakers: 2
RMS rated power: 10 W
Built-in speaker(s): Yes

Design

Market positioning: Gaming
Product colour: Black, Red
Front bezel colour: Black

Ports & interfaces

Built-in USB hub: Yes
USB Type-C DisplayPort Alternate Mode: Yes
HDMI: Yes
HDMI ports quantity: 2
HDMI version: 2.1
DisplayPorts quantity: 1
DisplayPort version: 1.4
Headphone out: Yes
Headphone connectivity: 3.5 mm

Ergonomics

VESA mounting: Yes
Panel mounting interface: 100 x 100 mm
Cable lock slot: Yes
Cable lock slot type: Kensington
Height adjustment: Yes
Adjustable height (max): 13 cm
Swivelling: Yes
Swivel angle range: 20 - 20°
Tilt adjustment: Yes
Tilt angle range: 3.5 - 21.5°
Picture-in-Picture: Yes
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

Power

Energy efficiency class (SDR): F
Energy efficiency class (HDR): G
Energy consumption (SDR) per 1000 hours: 31 kWh
Energy consumption (HDR) per 1000 hours: 60 kWh
Power consumption (typical): 31 W
Power consumption (standby): 0.5 W
Power consumption (off): 0.5 W
Power supply type: Internal
Energy efficiency scale: A to G

Weight & dimensions

Width (with stand): 808.1 mm
Depth (with stand): 269.4 mm
Height (with stand): 435.7 mm
Weight (with stand): 8.6 kg
Width (without stand): 808.1 mm
Depth (without stand): 109.5 mm
Height (without stand): 368.4 mm
Weight (without stand): 6.38 kg

Other features

Brand specific technologies: Crosshair
Low input lag: Yes
FPS counter: Yes
Dial point: Yes
Shadow control: Yes
Motion blur reduction: Yes
Warranty period: 3 year(s)
Bezel thickness type: Frameless

Technical details

Native refresh rate: 60 Hz

Check the manufacturer's page before buying.

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About this product

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.

User manual (PDF)

CU34G4ZCA vs similar monitors

	AOC G4 CU34G4ZCA 34″ 250Hz Monitor	AOC G4 CU34G4/69 34″ 180Hz Monitor	AOC G4 CU34G4CAP 34″ 180Hz Monitor	AOC G4 CU34G4P 34″ 180Hz Monitor
Screen size	34 inch	34 inch	34 inch	34 inch
Resolution	3440 x 1440	3440 x 1440	3440 x 1440	3440 x 1440
Refresh rate	250 Hz	180 Hz	180 Hz	180 Hz
Panel	Fast VA	Fast VA	Fast VA	Fast VA
Response time	1 ms	1 ms	1 ms	1 ms
Released	2026	2026	2026	2026