ASUS ROG Strix OLED XG27UCDMG 27″ 240Hz Monitor

27 inch · 3840 x 2160 · 240 Hz · OLED

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Screen size 27 inch
Resolution 3840 x 2160
Refresh rate 240 Hz
Panel OLED
Response time 0.03 ms

ASUS ROG Strix OLED XG27UCDMG 27″ 240Hz Monitor is a 27-inch monitor with 3840 x 2160 resolution, a 240 Hz refresh rate and OLED panel. The high refresh rate makes fast games look smoother. It came out in 2025.

Released: 2025-03-07

Specifications

Key specs

Screen size: 27 inch
Resolution: 3840 x 2160
Refresh rate: 240 Hz
Panel: OLED
Response time: 0.03 ms
Released: 2025-03-07
Part number: 90LM0B20-B01971
EAN / UPC: 4711387815243

Display

Display diagonal: 67.3 cm (26.5")
Display resolution: 3840 x 2160 pixels
HD type: 4K Ultra HD
Native aspect ratio: 16:9
Display technology: QD-OLED
Panel type: OLED
LED backlight: Yes
Display brightness (peak): 1000 cd/m²
Response time: 0.03 ms
Response time measurement type: GTG (Gray to Gray)
Display surface: Matt
Anti-glare screen: Yes
Screen shape: Flat
Contrast ratio (typical): 1500000:1
Maximum refresh rate: 240 Hz
Viewing angle, horizontal: 178°
Viewing angle, vertical: 178°
Display number of colours: 1.073 billion colours
Pixel pitch: 0.15525 x 0.15525 mm
Viewable size, horizontal: 59 cm
Viewable size, vertical: 33.3 cm
Digital horizontal frequency: 30 - 590 kHz
Digital vertical frequency: 48 - 240 Hz
Display diagonal (metric): 68 cm
High Dynamic Range (HDR) supported: Yes
High Dynamic Range (HDR) technology: High Dynamic Range 10 (HDR10)
Colour gamut standard: DCI-P3, sRGB
sRGB coverage (typical): 145%
DCI-P3 coverage: 99%

Performance

NVIDIA G-SYNC: Yes
NVIDIA G-SYNC type: G-SYNC Compatible
AMD FreeSync: Yes
AMD FreeSync type: FreeSync Premium
VESA Adaptive Sync support: Yes
Flicker-free technology: Yes
Low Blue Light technology: Yes

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Design

Market positioning: Gaming
Product colour: Black
Feet colour: Black

Ports & interfaces

I/O ports: DisplayPort 1.4 DSCx 1, HDMI (v2.1)x 2, USB-Cx 1 (DP Alt Mode), Earphone jack : Yes, USB Hub : 3x USB 3.2 Gen 1 Type-A,USB-C Power Delivery : 90W
Built-in USB hub: Yes
USB hub version: 3.2 Gen 1 (3.1 Gen 1)
USB Type-A downstream ports quantity: 3
USB Type-C downstream ports quantity: 1
USB Type-C DisplayPort Alternate Mode: Yes
USB Power Delivery (USB PD): Yes
USB Power Delivery up to: 90 W
HDMI: Yes
HDMI ports quantity: 2
HDMI version: 2.1
DisplayPorts quantity: 1
DisplayPort version: 1.4
Headphone out: Yes
Headphone outputs: 1
Built-in KVM switch: Yes
HDCP: Yes
HDCP version: 2.2

Ergonomics

VESA mounting: Yes
Panel mounting interface: 100 x 100 mm
Wall mountable: Yes
Cable lock slot: Yes
Cable lock slot type: Kensington
Height adjustment: Yes
Adjustable height (max): 12 cm
Pivot: Yes
Pivot angle: -90 - 90°
Swivelling: Yes
Swivel angle range: -45 - 45°
Tilt adjustment: Yes
Tilt angle range: -5 - 20°
Picture-in-Picture: Yes

Power

Energy efficiency class (SDR): F
Energy efficiency class (HDR): G
Energy consumption (SDR) per 1000 hours: 25 kWh
Energy consumption (HDR) per 1000 hours: 34 kWh
Power consumption (typical): 80 W
Power consumption (standby): 0.5 W
Power consumption (off): 0.3 W
Power consumption (PowerSave): 0.5 W
AC input voltage: 100 - 240 V
AC input frequency: 50/60 Hz
Power supply type: Internal
Energy efficiency scale: A to G

Weight & dimensions

Width (with stand): 613 mm
Depth (with stand): 168.7 mm
Height (with stand): 509.4 mm
Weight (with stand): 7.44 kg
Width (without stand): 610.3 mm
Depth (without stand): 66.5 mm
Height (without stand): 369.2 mm
Weight (without stand): 5 kg

Other features

Brand specific technologies: ASUS OLED Care
Motion blur reduction: Yes
Display viewable area (HxV): 589.97 x 332.93 mm

Technical details

Native refresh rate: 60 Hz

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About this product

ROG Strix OLED XG27UCDMG Gaming Monitor — 27-inch (26.5-inch viewable) 4K QD-OLED panel, 240Hz, 0.03ms(GTG), OLED Anti-Flicker 2.0, custom heatsink, OLED Care Pro, Neo Proximity Sensor, G-SYNC® compatible, VESA DisplayHDR™ 400 True Black, uniform brightness, 99% DCI-P3, true 10-bit color, DisplayWidget Center

User manual (PDF)

XG27UCDMG vs similar monitors

	ASUS ROG Strix OLED XG27UCDMG 27″ 240Hz Monitor	Samsung 27" Odyssey OLED G8 G80SH 4K 240Hz Gaming Monitor	Samsung G80SH 27″ 240Hz Monitor	Lenovo Legion Pro 27UD-10 Monitor
Screen size	27 inch	27 inch	27 inch	27 inch
Resolution	3840 x 2160	3840 x 2160	3840 x 2160	3840 x 2160
Refresh rate	240 Hz	240 Hz	240 Hz	240 Hz
Panel	OLED	OLED	OLED	OLED
Response time	0.03 ms	0.03 ms	0.03 ms	0.03 ms
Released	2025	2026	2026	2026