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Black 34-inch ultrawide curved QD-OLED gaming monitor with thin three-sided bezels

ASUS

ASUS XG34WCDG 34" QD-OLED gaming monitor 3440x1440 175Hz

SKU CH-3AX6-AVJKA MPN XG34WCDG

A 34-inch curved QD-OLED panel delivers 3440x1440 resolution at 175Hz with 0.03ms response time and 99.3% DCI-P3 colour

  • Screen size34 in (86.4 cm)
  • Display resolution3440 × 1440
  • Refresh frequency175 Hz
  • Panel typeQD-OLED
  • Pixel response time0.03 ms(GTG)
  • Power draw<36 W Power Saving Mode: <0.5 W Power Off Mode: <0.3 W
  • True 10-bit color with 99.3% DCI-P3 coverage for accurate creative work
  • 175 Hz refresh rate and 0.03 ms response time for fluid motion
  • QD-OLED panel delivers 1,500,000:1 contrast and 1,000 cd/m² peak brightness
  • 1800R curvature on a 34-inch ultrawide for immersive viewing
  • OLED Care Pro with proximity sensor reduces burn-in risk automatically

34-inch QD-OLED curved display

The ASUS XG34WCDG is a 34-inch ultrawide gaming monitor built around a QD-OLED panel with 3440 x 1440 resolution and 1800R curvature. A 175Hz refresh rate and 0.03ms response time target competitive play, while 99.3% DCI-P3 coverage and true 10-bit color suit creative workflows. VESA DisplayHDR True Black 400 certification and a 1,500,000:1 contrast ratio deliver deep blacks and 1,000 cd/m2 peak brightness.

Gamers and creators seeking contrast and speed

The 21:9 aspect ratio and wide 178-degree viewing angles benefit immersive gaming and timeline-based editing. Buyers who need higher sustained brightness for sunlit rooms or a flatter panel for precise straight-line work should consider alternative models. The 250 cd/m2 typical brightness and curved surface define the optimal viewing environment.

Cables, pouch, stickers and management software

A DisplayPort cable and USB Type-B to A cable enable video and upstream USB connectivity immediately. The bundled ROG pouch and stickers add branding, while the quick start guide and warranty card cover setup basics. DisplayWidget Center software provides mouse-driven access to OLED Care Pro functions, including the Neo Proximity Sensor that blanks the screen when you step away.

How it compares

Measured against everything we stock in Monitors for Gamers, at today’s prices. Recalculated every night.

Price $539.99
Pricier than about 86% of the 839 comparable items (median $189.99).
Screen size 34 in (86.4 cm)
Higher than about 90% of the 814 comparable items (median 27 in).
Refresh frequency 175 Hz
Lower than about 63% of the 735 comparable items (median 180 Hz).

Specifications

Product
Brand nameASUS
Model nameXG34WCDG
Case colorBlack
Display
Screen size34 in (86.4 cm)
Display resolution3440 × 1440
Refresh frequency175 Hz
Panel typeQD-OLED
Pixel response time0.03 ms(GTG)
Image brightness250cd/m2 (Typ.), 1,000 cd/m2 (HDR, Peak)
Screen curvatureCurved
Bezel style3 Sided Thin Frame
Widescreen formatYes
Variable refresh rateFreeSync Premium Pro & G-Sync Compatible
Viewing angles178° (H) / 178° (V)
Screen ratio21:9
Contrast1,500,000:1
Colors displayed1.07 Billion
Pixel pitch0.232 mm
DisplayHDR certificationDisplayHDR True Black 400
Audio & video
Integrated speakersNo
Integrated webcamNo
Ports & slots
Video connectors1 x USB-C (DP Alternative) / 2 x HDMI 2.1
USB connections1 x USB 2.0 Type-A / 2 x USB 3.2 Gen 1 Type-A
Power
Power draw<36 W
Power Saving Mode: <0.5 W
Power Off Mode: <0.3 W
Power supply100–240 VAC, 50/60 Hz
Size & build
Stand adjustabilityTilt: Yes (+20° ~ -5°)
Swivel: Yes (+25° ~ -25°)
Height Adjustment: 0 to 110 mm
VESA mounting pattern100 × 100 mm
Product dimensions21.46 in × 31.97 in × 7.83 in with stand
14.96 in × 31.97 in × 4.25 in without stand
Product weight18.3 lb with stand
13.67 lb without stand
Shipping weight11.70 kg
Package size927 × 508 × 216 mm
In the box
In the boxDisplayPort cable
Power cord
Quick start guide
ROG pouch
ROG sticker
USB Type-B to A cable
Warranty Card

Questions about this item

Will the 1800R curve and 21:9 aspect ratio fit on a standard VESA mount?

The monitor uses a 100 mm VESA pattern; the 1800R curvature and 21:9 width do not change the mounting holes, so any VESA 100 mount rated for 34-inch panels will work.

Does the 0.03 ms response time require a specific cable or GPU setting to activate?

The 0.03 ms GTG figure is a panel specification; it is achieved over DisplayPort at 175 Hz with G-Sync Compatible or FreeSync Premium Pro enabled in the driver.

What HDR brightness can I expect in real scenes versus the 1000 cd/m² peak?

Typical full-screen brightness is 250 cd/m²; the 1000 cd/m² peak applies to small highlights under DisplayHDR True Black 400, so sustained bright scenes stay near the typical level.

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