ASUS ROG Strix OLED XG34WCDG - 34" UWQHD Curved QD-OLED Gaming Monitor, 175Hz, 0.03ms, Black
ASUS ROG
ASUS ROG Strix OLED XG34WCDG - 34" UWQHD Curved QD-OLED Gaming Monitor, 175Hz, 0.03ms, Black
The ASUS ROG Strix OLED XG34WCDG is a 34-inch ultrawide QD-OLED gaming monitor with an 1800R curve, running 3440 × 1440 at up to 175Hz with a 0.03ms grey-to-grey response. It covers 99.3% of DCI-P3 at Delta E under 2, carries DisplayHDR 400 True Black, and ASUS backs it with a three-year warranty that includes panel burn-in. ASUS part 90LM0B70-B01171.
Why this product
34-inch QD-OLED, 3440 × 1440 at 175Hz
A quantum-dot OLED panel at ultrawide 21:9, curved to 1800R, with a 1,500,000:1 contrast ratio that only OLED delivers — true blacks rather than backlit grey.
0.03ms grey-to-grey
ASUS's spec table rates the panel at 0.03ms GtG, two orders of magnitude faster than a typical LCD gaming panel.
99.3% DCI-P3 at Delta E under 2
Wide colour with measured accuracy: 99.3% of the DCI-P3 cinema gamut, 10-bit colour, and an average Delta E below 2.
OLED Care Pro with proximity sensor
ASUS pairs a custom heatsink and internal airflow with OLED Care Pro: pixel cleaning, Screen Move, logo brightness control, taskbar detection and a Neo Proximity Sensor that blanks the screen when you step away.
Built-in KVM and a USB hub
A KVM switch lets one keyboard and mouse drive two machines through the monitor, with two USB 3.2 Gen 1 Type-A ports and one USB 2.0 Type-A on the hub.
Three-year warranty including burn-in
ASUS's spec sheet states three years and names panel burn-in as covered — the main reservation buyers have about OLED.
- ModelROG Strix OLED XG34WCDG
- ASUS part number90LM0B70-B01171
- Panel34 inch QD-OLED, 1800R curve
- Resolution3440 × 1440 (UWQHD), 21:9
- Refresh rateUp to 175Hz
- Response time0.03ms (GtG)
- Colour99.3% DCI-P3, Delta E under 2
- HDRVESA DisplayHDR 400 True Black
- SKUASU-2582
- EAN4711387973332
- Inputs are DisplayPort 1.4 with DSC, two HDMI 2.1 ports with FRL, and a USB-C input with DisplayPort Alt Mode.
- Tear-free with either graphics vendor: VESA AdaptiveSync Display certified at 175Hz, AMD FreeSync Premium Pro and G-SYNC Compatible.
- USB hub with 2 × USB 3.2 Gen 1 Type-A and 1 × USB 2.0 Type-A, plus a KVM switch for running two machines from one keyboard and mouse.
- VESA 100 × 100 mm mounting (kit supplied), a 1/4-inch tripod socket and a Kensington lock slot. Aura Sync lighting is built in.
- The USB-C input provides 15W of power delivery. It carries video, but it is not a laptop charging port.
- ASUS marks the dimensions and weights for this model as estimates that vary by region.
- ASUS states this monitor has no built-in speakers. There is a 3.5mm earphone jack.
Best for
- Immersive single-player and atmospheric games, where OLED black levels and an 1800R ultrawide curve do the most work.
- Anyone nervous about OLED burn-in — ASUS covers it for three years and ships OLED Care Pro plus a custom heatsink.
- Colour work alongside gaming: 99.3% DCI-P3, 10-bit, Delta E under 2.
- Two-machine desks, thanks to the built-in KVM switch.
- Fast-motion content, at 0.03ms GtG and 175Hz.
Trade-offs
- Bright rooms: 250 cd/m² typical full-screen brightness is modest; the 1,000 cd/m² figure is HDR peak, not sustained.
- Laptop docking: the USB-C input delivers 15W, not enough to charge a laptop.
- Portrait orientation: the stand tilts, swivels and raises, but ASUS publishes no pivot figure for this model.
- Multi-monitor walls: a curved 34-inch ultrawide does not line up beside other panels.
- Anyone who needs sound from the monitor: ASUS states there are no speakers.
The ROG Strix OLED XG34WCDG is a 34-inch ultrawide QD-OLED, curved to 1800R, running 3440 × 1440 at up to 175Hz.
What OLED buys you here is contrast: ASUS rates it at 1,500,000:1, which means black pixels are genuinely off rather than a backlight showing through. Response time is 0.03ms grey-to-grey on ASUS's spec table, and the panel covers 99.3% of DCI-P3 in 10-bit colour at an average Delta E below 2 — wide and accurate, not just wide.
The usual reservation about OLED is burn-in, and ASUS answers it twice. There is a custom heatsink with internal airflow, plus OLED Care Pro: pixel cleaning, Screen Move, logo brightness control, taskbar detection, and a Neo Proximity Sensor that blanks the screen to black when you step away, with an adjustable detection distance. And the warranty is three years with panel burn-in named as covered.
Connectivity runs to DisplayPort 1.4 with DSC, two HDMI 2.1 ports with FRL, and a USB-C input with DisplayPort Alt Mode and 15W of power delivery. A USB hub provides two USB 3.2 Gen 1 Type-A ports and one USB 2.0, and a built-in KVM switch lets one keyboard and mouse drive two machines.
The stand tilts, swivels and raises through 110mm, with Aura Sync lighting, a 1/4-inch tripod socket and a supplied VESA 100 × 100 mm kit. ASUS states there are no built-in speakers; there is a 3.5mm earphone jack.
General
| Brand | ASUS ROG |
|---|---|
| Model | ROG Strix OLED XG34WCDG |
| ASUS part number | 90LM0B70-B01171 |
| EAN | 4711387973332 |
| Certification | FSC MIX |
Display
| Panel size | 34 inch, 21:9 |
|---|---|
| Panel type | QD-OLED, anti-reflection |
| Curvature | 1800R |
| Resolution | 3440 × 1440 (UWQHD) |
| Pixel pitch | 0.232 mm |
| Viewing area | 800.06 × 337.06 mm |
| Refresh rate | Up to 175Hz |
| Response time | 0.03ms (GtG) |
| Brightness | 250 cd/m² typical; 1,000 cd/m² HDR peak |
| Contrast ratio | 1,500,000:1 (typical) |
| Colour gamut | 99.3% DCI-P3 |
| Colour accuracy | Delta E under 2 |
| Display colours | 1073.7 million (10-bit) |
| Viewing angles | 178° / 178° |
| HDR | VESA DisplayHDR 400 True Black |
Gaming & OLED Care
| Adaptive sync | VESA AdaptiveSync Display 175Hz, AMD FreeSync Premium Pro, G-SYNC Compatible |
|---|---|
| OLED Care | OLED Care Pro — pixel cleaning, Screen Move, boundary detection, screen saver, logo brightness, taskbar detection, outer and global dimming |
| Proximity sensor | Neo Proximity Sensor with adjustable detection distance |
| Thermal management | Custom heatsink with internal airflow |
| Flicker-free | Yes |
Connectivity
| DisplayPort | 1 × DisplayPort 1.4 with DSC |
|---|---|
| HDMI | 2 × HDMI 2.1 (FRL) |
| USB-C | 1 × USB-C with DisplayPort Alt Mode, 15W power delivery |
| USB hub | 2 × USB 3.2 Gen 1 Type-A, 1 × USB 2.0 Type-A |
| KVM switch | Yes |
| Audio | 3.5mm earphone jack; no built-in speakers |
Stand & Physical
| Tilt | +20° to −5° |
|---|---|
| Swivel | ±25° |
| Height adjustment | 0–110 mm |
| VESA mount | 100 × 100 mm (kit supplied) |
| Other mounting | 1/4-inch tripod socket, Kensington lock slot |
| Lighting | Aura Sync |
| Dimensions with stand | 81.2 × 54.5 × 19.9 cm (estimated) |
| Weight | 8.3 kg with stand; 6.2 kg without (estimated) |
Power, Box & Warranty
| Power input | 100–240 V, 50/60 Hz |
|---|---|
| Power consumption | Under 36W; under 0.5W power saving; under 0.3W off |
| In the box | DisplayPort cable, USB Type-B to Type-A cable, VESA mount kit, power cord, quick start guide, ROG pouch, ROG sticker, warranty card |
| Warranty | ASUS states 3 years, including panel burn-in |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.