ASUS ROG Strix OLED XG34WCDMSGlobal manufacturer specification · ROG Strix OLED XG34WCDMS- Refresh rate
- 280 HzThis one: 240 Hz
MONITORS
MSI MPG 341CQPX QD-OLED
34.18-inch · 3440 × 1440 · 240 Hz
- Screen diagonal
- 34 in
- Native resolution
- 3440 × 1440
- Refresh rate
- 240 Hz
A 34-inch 3440 × 1440 1800R curved QD-OLED monitor running up to 240 Hz on every input, with a 0.03 ms GtG response rating, DisplayHDR True Black 400 and up to 98 W USB-C charging.
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THE ACTUAL PRODUCT
Compare with ASUS ROG Strix OLED XG34WCDMS
Specifications checked 21 Sept 2026Manufacturer specifications, not a hands-on test.
The nearest checked monitors by key specifications, with what differs from the MSI MPG 341CQPX QD-OLED. The first matches the Compare button above.
ASUS ROG Strix OLED XG34WCDMSGlobal manufacturer specification · ROG Strix OLED XG34WCDMS
MSI MAG 341CQP QD-OLED34-inch · 3440 × 1440 · 175 Hz · MSI global specification- Refresh rate
- 175 HzThis one: 240 Hz
AOC AG346UCDAG346UCD · 34-inch QD - OLED · AOC UK specification- Refresh rate
- 175 HzThis one: 240 Hz
Key strengths
240 Hz at 3440 × 1440 over DisplayPort, HDMI 2.1 or USB-C, a 0.03 ms GtG response rating and 99.3% DCI-P3 (CIE 1976), with USB-C video, 98 W charging and a USB hub.
PIP/PBP is supported, and the 3-year warranty covers panel burn-in.
Before you buy
The 1000 cd/m² HDR figure applies only in Peak 1000 mode at 3% APL (450 cd/m² in True Black 400 mode at 10% APL), and the USB hub ports are USB 2.0.
Every specification. With its source.
Full specifications
Exact configuration: 34.18-inch · 3440 × 1440 · 240 Hz · MSI global specification
55 specifications in 10 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”. 1 row repeats a listed fact in the manufacturer’s own wording, kept under “Manufacturer wording”.
Screen & panel
7 items
- Screen diagonal
- 34 in
MSI lists 34.18 in (86.82 cm); shown at the 34-inch size MSI uses for the MAG 341CQP, which has the same active area and pixel pitch. · Manufacturer panel diagonal; rounded size printed on marketing imagery may differ.
Source - Native resolution
- 3440 × 1440Source
- Panel technology
- QD-OLEDSource
- Aspect ratio
- 21:9Source
- Screen shape
- Curved, 1800RSource
- Pixel pitch
- 0.2315 × 0.2315 mmSource
- Declared viewing angles
- 178° horizontal / 178° verticalSource
Refresh & response
8 items
- Refresh rate
- 240 Hz
DisplayPort: up to 240 Hz; HDMI: up to 240 Hz; USB-C DisplayPort Alt Mode: up to 240 Hz, at native 3440 × 1440 resolution. Source, cable and selected mode must support the signal.
Source - Adaptive sync
- Yes
Check that your graphics card or console, input and mode support the listed technology.
Source - Listed sync technology
- NVIDIA G-SYNC Compatible
Requires a compatible source, port, driver and mode.
Source - Declared adaptive-sync range
- 48–240 HzSource
- Declared GtG response
- 0.03 msSource
- Native-resolution input limits
- HDMI, DisplayPort and USB-C: 3440 × 1440 up to 240 HzSource
- Maximum HDMI refresh at native resolution
- 240 Hz
Compatible source and cable required.
Source - Maximum USB-C refresh at native resolution
- 240 Hz
Source port and cable must support DisplayPort Alt Mode.
Source
Manufacturer wording (1)
The same facts in the manufacturer’s combined or original wording, each with its source.
- Response method and claim
- 0.03 ms GtG
GtG, MPRT and input lag measure different things.
Source
Colour, brightness & HDR
11 items
- Declared brightness
- 250 cd/m²
Typical SDR brightness; not an HDR peak figure.
Source - Static contrast claim
- 1500000:1Source
- Colour depth
- 10-bitSource
- HDR support
- YesSource
- HDR brightness conditions
- 450 cd/m² typical in True Black 400 mode at 10% APL; 1000 cd/m² typical in Peak 1000 mode at 3% APL
Manufacturer HDR mode conditions; APL means average picture level. Not full-screen SDR brightness.
Source - Manufacturer-listed HDR certification
- DisplayHDR True Black 400Source
- Declared HDR peak brightness
- 1000 cd/m²
Typical value in Peak 1000 mode at 3% APL; not full-screen or sustained brightness.
Source - Declared sRGB gamut
- 139.1% (CIE 1976)
Figures above 100% describe colour volume, not coverage.
Source - Declared DCI-P3 gamut
- 99.3% (CIE 1976)Source
- Declared Adobe RGB gamut
- 97.8% (CIE 1976)Source
- Displayable colours
- 1.07 billionSource
Inputs & connections
8 items
- USB-C connection
- YesSource
- Inputs and versions
- 1 × DisplayPort 1.4a; 2 × HDMI 2.1; 1 × USB-C with DisplayPort Alt Mode and up to 98 W Power Delivery; headphone output
MSI's datasheet labels the USB-C connector 'USB 2.0 Type-C'. · DisplayPort: up to 240 Hz; HDMI: up to 240 Hz; USB-C DisplayPort Alt Mode: up to 240 Hz, at native 3440 × 1440 resolution. Source, cable and selected mode must support the signal.
Source - USB hub
- Yes
USB hub data needs an upstream connection to the computer.
Source - USB hub connections
- 2 × USB 2.0 Type-A; 1 × USB 2.0 Type-BSource
- USB-C charging
- 98 W
Maximum charging output, not the monitor’s power consumption. Compatible device and cable required.
Source - HDMI version
- 2.1Source
- USB-C display input
- Yes
Both the source port and cable must support DisplayPort Alt Mode.
Source - Picture-in-picture / picture-by-picture
- Yes
Manufacturer-listed support; supported modes and feature interactions are not stated in the datasheet.
Source
Stand & mounting
7 items
- Height-adjustable stand
- Yes
The supplied stand has a published height adjustment range of 0–100 mm. This is travel, not the assembled monitor height.
Source - VESA mounting pattern
- 100 × 100 mmSource
- Stand height travel
- 100 mm
Adjustment travel, separate from assembled monitor height.
Source - Stand tilt
- −5° to 20°Source
- Swivel-adjustable stand
- Yes
Listed swivel range −30° to 30°.
Source - Stand adjustment
- Tilt −5° to +20°; swivel ±30°; height travel 100 mmSource
- Kensington lock slot
- YesSource
Size, weight & build
7 items
- Dimensions with stand
- 812 × 427 × 318 mm (width × height × depth, with stand)
Manufacturer dimensions with stand, shown width × height × depth. Stand depth is not panel thickness and excludes additional cable clearance.
Source - Stand depth
- 318 mm
Manufacturer dimensions with stand, shown width × height × depth. Stand depth is not panel thickness and excludes additional cable clearance.
Source - Active display area
- 800.1 × 337.1 mm (horizontal × vertical)
MSI lists 800.06 × 337.06 mm.
Source - Net weight
- 8.8 kg
Manufacturer net weight with stand (the separate without-stand figure is listed).
Source - Gross shipping weight
- 12.45 kgSource
- Weight without stand
- 6.66 kgSource
- Dimensions without stand
- 812 × 361 × 130 mm (width × height × depth)Source
Power & energy
1 item
- Mains power input
- 100–240 V AC, 50/60 Hz
Datasheet Power Type row reads “Power Cable”; no external adapter is listed.
Source
Eye care & features
3 items
Audio
2 items
Box, warranty & identity
1 item
- Manufacturer warranty statement
- 3 years (including panel burn-in)
Global datasheet statement; confirm the terms that apply in the purchase region.
Source
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