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A curved 34-inch ultrawide OLED monitor in black with a height-adjustable stand

ASUS

ASUS ROG Strix XG34WCDMTG 34" 240Hz OLED gaming monitor

SKU CH-C569-50AJ0 MPN XG34WCDMTG

A 34-inch curved UWQHD OLED gaming monitor with a 240Hz refresh rate, 0.03 ms response time and built-in Google TV

  • Screen size34 in (86.4 cm)
  • Display resolution3440 × 1440
  • Refresh frequency240 Hz
  • Panel typeOLED
  • Pixel response time0.03 ms
  • Power draw41.5 W Power Saving Mode: <0.5 W Power Off Mode: <0.3 W

Model 240Hz Android TV OLED

  • Immersive 34" curved 21:9 UWQHD OLED for expansive gaming view
  • 240 Hz refresh with 0.03 ms response for ultra-smooth motion
  • 99 % DCI-P3 and 1,500,000:1 contrast deliver vivid, deep colour
  • FreeSync Premium Pro and G-Sync Compatible prevent tearing
  • Built-in Android 14 Google TV and WiFi 6 enable streaming without a PC

34" UWQHD QD-OLED for gamers and streamers

The ASUS ROG Strix XG34WCDMTG combines a 34-inch curved QD-OLED panel with a 3440 x 1440 resolution and a 240Hz refresh rate. It targets players who want ultra-responsive motion and creators who value the 21:9 aspect ratio for timeline work. Built-in Android 14 Google TV and WiFi 6 add standalone streaming and cloud gaming without a PC connected.

Upgrade from standard 144Hz ultrawides

Moving to this monitor is worth it when you need the 0.03 ms response time and 1,500,000:1 contrast that only OLED delivers. The jump pays off in fast-paced titles where motion clarity matters and in dark scenes where true blacks reveal detail. FreeSync Premium Pro and G-Sync Compatible support keep variable refresh smooth across both GPU brands.

99% DCI-P3 and 1000 cd/m² peak brightness for HDR

The panel covers 99% of the DCI-P3 gamut with 1.073 billion colours, making it comfortable for colour-grading and HDR content at the VESA DisplayHDR 400 True Black level. Typical brightness sits at 250 cd/m², so sustained full-screen white in SDR workflows stays modest. The 90W USB-C power delivery runs a thin-and-light laptop, but heavier workstations will need their own charger.

How it compares

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

Price $851.99
Pricier than about 91% 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 240 Hz
Higher than about 70% of the 735 comparable items (median 180 Hz).

Specifications

Product
Brand nameASUS
Product lineROG Strix
Model nameXG34WCDMTG
Case colorBlack
Display
Screen size34 in (86.4 cm)
Display resolution3440 × 1440
Refresh frequency240 Hz
Panel typeOLED
Pixel response time0.03 ms
Image brightnessHDR, Peak: 1,000 cd/m2
Typ: 250 cd/m2
Screen curvatureCurved
Widescreen formatYes
Display formatUWQHD
Variable refresh rateFreeSync Premium Pro & G-Sync Compatible
Viewing angles178° (H) / 178° (V)
Screen ratio21:9
Contrast1,500,000:1
Color gamut coverageDCI-P3 99%
Colors displayed1.073 Billion
Pixel pitch0.231 mm
Audio & video
Integrated speakers2 × 5 W
Integrated webcamNo
HDCP compatibilityYes, v2.2
Ports & slots
Connection typesHDMI, DisplayPort, USB, Audio
HDMI ports2 x HDMI 2.1
DisplayPort connectors1 x DisplayPort 1.4
Video connectors1 x DisplayPort 1.4 / 1 x USB-C (DP Alternative) / 2 x HDMI 2.1
USB connections1 x USB-C (DP Alt Mode)
2 x USB 2.0 Type-A
USB-C Power Delivery: 90 W
Headphone jackEarphone Jack
Power
Power draw41.5 W
Power Saving Mode: <0.5 W
Power Off Mode: <0.3 W
Power supply100–240 VAC, 50/60 Hz
Size & build
Stand adjustabilityHeight, Swivel, Tilt
VESA mounting pattern100 × 100 mm
Product dimensions31.96 in × 21.46 in × 4.69 in with Stand
31.96 in × 14.08 in × 4.27 in without Stand
Product weight19.4 lb with Stand
13.67 lb without Stand
Shipping weight12.38 kg
Package size914 × 508 × 224 mm
Compatibility
Supported OSAndroid 14 version
In the box
In the boxAAA Battery x2
DisplayPort cable
HDMI cable
Power cord
Remote Controller
USB-C cable

Other versions of this model

1 more in the same range

Questions about this item

Does the 1800R curved stand allow VESA wall mounting if I remove it?

Yes, the stand detaches and the monitor has a standard VESA mount pattern for wall or arm installation.

What is the correct order to connect a laptop with the single USB-C cable for 90W charging and video?

Plug the USB-C cable into the monitor first, then into the laptop; this ensures the DP Alt Mode handshake and 90W power delivery activate together.

How do I clean the QD-OLED panel without damaging the anti-reflective coating?

Use a dry microfibre cloth only; avoid liquids, sprays, or pressure on the 0.03 ms response-time surface.

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