AOC G4 CU34G4Z 34″ 240Hz Monitor

34 inch · 3440 x 1440 · 240 Hz · Fast VA

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Screen size 34 inch
Resolution 3440 x 1440
Refresh rate 240 Hz
Panel Fast VA
Response time 1 ms

AOC G4 CU34G4Z 34″ 240Hz Monitor is a 34-inch monitor with 3440 x 1440 resolution, a 240 Hz refresh rate and Fast VA panel. The high refresh rate makes fast games look smoother. It came out in 2025.

Released: 2025-01-10

Specifications

Key specs

Screen size: 34 inch
Resolution: 3440 x 1440
Refresh rate: 240 Hz
Panel: Fast VA
Response time: 1 ms
Released: 2025-01-10
Part number: CU34G4Z
EAN / UPC: 4038986612692

Display

Display diagonal: 86.4 cm (34")
Display resolution: 3440 x 1440 pixels
HD type: Wide Quad HD
Native aspect ratio: 21:9
Display technology: LED
Panel type: Fast VA
LED backlight: Yes
Backlight type: W-LED
Display brightness (typical): 450 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: 240 Hz
Viewing angle, horizontal: 178°
Viewing angle, vertical: 178°
Display number of colours: 1.07 billion colours
Pixel density: 109 ppi
Digital horizontal frequency: 30 - 360 kHz
Digital vertical frequency: 48 - 240 Hz
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): 130.3%
Adobe RGB coverage: 88.7%
DCI-P3 coverage: 94%

Performance

AMD FreeSync refresh rate range: 48 - 240 Hz
VESA Adaptive Sync support: Yes
Flicker-free technology: Yes
Low Blue Light technology: Yes
Game mode: Yes

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Design

Market positioning: Gaming
Product colour: Black, Red
Frameless design: Yes
Front bezel colour: Black
Detachable stand: Yes

Ports & interfaces

Built-in USB hub: Yes
USB hub version: 3.2 Gen 1 (3.1 Gen 1)
USB upstream port type: USB Type-B
Number of upstream ports: 1
USB Type-A downstream ports quantity: 2
HDMI: Yes
HDMI ports quantity: 2
HDMI version: 2.1
DisplayPorts quantity: 1
DisplayPort version: 1.4
Headphone out: Yes
Headphone outputs: 1
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
Number of OSD languages: 19

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: 68 kWh
Power consumption (typical): 43 W
Power consumption (standby): 0.5 W
Power consumption (off): 0.3 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): 534.7 mm
Weight (with stand): 8.62 kg
Width (without stand): 368.4 mm
Depth (without stand): 109 mm
Height (without stand): 368.4 mm
Weight (without stand): 6.37 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
Certification: WEEE,REACH compliant,RoHs compliant

Technical details

Native refresh rate: 60 Hz

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About this product

Dominate with the CU34G4Z 34" WQHD Curved Monitor, featuring a 3440x1440 resolution, HDR400, and a 240Hz refresh rate. Take your gaming to the next level with the CU34G4Z 34" WQHD curved monitor. Enjoy ultra-smooth gameplay with a 240Hz refresh rate and 1ms GtG response time. The 1500R curved Fast VA panel provides immersive visuals, while HDR400 enhances color and contrast. Equipped with an ergonomic stand, USB hub, and G-Menu software for customizable settings, this monitor is designed for gamers who demand precision and comfort.

User manual (PDF)

CU34G4Z vs similar monitors

	AOC G4 CU34G4Z 34″ 240Hz 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	240 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	2025	2026	2026	2026