ASUS ROG Swift OLED PG27UCDM / ASUS ROG Swift OLED PG34WCDM

ASUS ROG Swift OLED PG27UCDM: PG27UCDM; a single 26.5-inch 4K 240 Hz model. The larger PG32UCDM is a separate monitor.

ASUS ROG Swift OLED PG34WCDM: PG34WCDM (2024). 34-inch class (33.94-inch) 800R curved WOLED.

SpecificationASUS ROG Swift OLED PG27UCDMASUS ROG Swift OLED PG34WCDM
Release year20252024
Panel26.5-inch QD-OLED, 16:9; 3840 × 2160 (4K); 0.153 mm pixel pitch

The small pixel pitch (about 166 ppi) makes text and interface edges look sharper than on 27-inch 1440p monitors.

ASUS		33.94-inch WOLED; 3440 × 1440; 21:9; 800R curve; anti-glare (matte) surface

800R means the screen curves like an arc of a circle with an 800 mm radius. Pixel pitch is 0.231 mm.

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Refresh rate and VRR240 Hz; 48–240 Hz variable refresh on HDMI and DP/USB-C inputs; FreeSync Premium Pro, G-SYNC Compatible, VESA AdaptiveSync Display 240Hz

All inputs support 240 Hz at 4K; variable refresh prevents tearing and stutter as the game frame rate moves between 48 and 240.

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Response time0.03 ms (GtG)

Grey-to-grey transition time; because OLED pixels change much faster than LCD, motion blur depends mostly on the refresh rate.

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Brightness and contrast1,000 cd/m² HDR peak; 1,500,000:1 typical contrast

1,000 cd/m² is a peak reached on a small area of the screen; a full white screen stays much lower. ASUS gives no typical SDR brightness value.

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HDRVESA DisplayHDR 400 True Black; HDR10; Dolby Vision

The True Black tier measures OLED’s very low black level; 400 is the minimum peak brightness threshold in the certification test. Dolby Vision support lets compatible sources use scene-by-scene HDR data.

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Colour99% DCI-P3, 145% sRGB; 10-bit (1.07 billion colours); ΔE < 2

ΔE < 2 means factory calibration deviates from target colours by an amount most people cannot see; a calibration report is included.

ASUS		10-bit (1.07 billion colours); DCI-P3 99%, sRGB 135%; ΔE ≤ 2; 1,500,000:1 contrast

A factory colour calibration report is in the box.

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Inputs1 × DisplayPort 2.1; 2 × HDMI 2.1 (FRL); 1 × USB-C (DP Alt Mode, 90 W power delivery); headphone jack

USB-C takes video over a single cable and supplies up to 90 W to a laptop. The HDMI 2.1 inputs can be used for 4K 120 Hz on consoles.

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USB and KVM3 × USB-A 5 Gbps (USB 3.2 Gen 1) hub; KVM switch

KVM moves the keyboard and mouse attached to the monitor between two computers when the input is switched.

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SpeakersNone

A headphone jack or external speakers are needed for audio.

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OLED protectionASUS OLED Care; Neo Proximity Sensor

OLED Care includes burn-in prevention functions such as pixel cleaning, screen shift, logo brightness adjustment and taskbar detection. The proximity sensor dims the screen when the user leaves, reducing static image time.

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Power consumptionUnder 80 W in operation; under 0.5 W in standby, 0.3 W off ASUS—
Stand and mountingTilt +20°/−5°, swivel ±30°, pivot ±90°, height 0–110 mm; VESA 100 × 100; 1/4-inch tripod socket

The tripod socket is used to mount accessories such as a camera or light on the stand.

ASUS		Tilt +20° / −5°, swivel ±15°, height 0–110 mm; VESA 100 × 100 mm; 1/4-inch tripod socket; Kensington lock

The tripod socket is for mounting a camera or light on top of the stand.

ASUS
Dimensions and weightWith stand 61.03 × 54.95 × 21.88 cm, 7.62 kg; without stand 61.03 × 36.92 × 7.05 cm, 4.97 kg ASUS—
Warranty3 years, including panel burn-in

Warranty terms can vary by country.

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Refresh rate and response—240 Hz; 0.03 ms (GtG); Adaptive-Sync VRR

ASUS lists VESA AdaptiveSync Display 240Hz, AMD FreeSync Premium Pro and G-SYNC Compatible certification.

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Brightness and HDR—1300 cd/m² HDR peak brightness; HDR10; VESA DisplayHDR 400 True Black

ASUS gives this figure, asterisked, as peak HDR brightness; it is not sustained full-screen brightness.

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Video inputs—1 × DisplayPort 1.4 (DSC); 2 × HDMI 2.1 (FRL); 1 × USB-C (DP Alt Mode, 90 W power)

The USB-C input can take video from a laptop over one cable while charging it at up to 90 W. All three inputs support vertical frequencies up to 240 Hz.

ASUS
Other connections and features—USB hub: 2 × USB 3.2 Gen 1 Type-A, 1 × USB 2.0 Type-A; KVM switch; optical audio (S/PDIF) out; headphone out; no built-in speakers; proximity sensor

With KVM a keyboard and mouse plugged into the monitor can be shared between two computers.

ASUS
Power—31 W consumption; external power adapter; 100–240 V ASUS
Size and weight—With stand 78.6 × 55.1 × 29.3 cm and 8.4 kg; without stand 78.6 × 37.2 × 16.1 cm and 5.6 kg

ASUS notes dimensions and weight may vary by region.

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