Display Resolution 2560x1440, Display Size 27", Refresh Rate 240Hz, FreeSync, 0.03ms Response Time, Contrast Ratio 1.5M:1, Panel Type QD-OLED KOORUI 27" S2721XO QD-OLED 2560x1440 240Hz 0.03ms Freesync Widescreen Gaming Monitor

The KOORUI S2721XO is a 27-inch QD-OLED monitor offering ultra-sharp QHD resolution, a 240Hz refresh rate, 0.03ms response time, HDR True Black 400, and 99% DCI-P3 for exceptional gaming and creative performance.

Screen Size & Resolution: 27 inches with 2560×1440 QHD (WQHD) resolution provides clear and detailed visuals, approximately 1.8 times the information of Full HD
Panel Type: QD-OLED (Quantum Dot OLED), giving true blacks, infinite contrast, and ultra-vivid colors
Color Accuracy: Covers 99% of the DCI-P3 wide color gamut and 100% of sRGB, supporting True 10-bit color with factory-calibrated accuracy (Delta < 2) for professional-quality color reproduction
HDR Support: VESA DisplayHDR400 True Black enhances contrast, brightness, and highlights dynamic range
Refresh Rate & Response: Ultra-fast 240Hz refresh rate with 0.03ms GTG response time minimizes motion blur, ideal for competitive gaming

Specifications

Standards / Specifications	Adaptive Sync Technology (G-SYNC / FreeSync) AMD FreeSync Premium Pro, NVIDIA G-SYNC Compatible Standard / specification HDMI 2.1, DisplayPort 1.4 Lighting Lighting / RGB No Webcam Webcam No Dimensions Length / Depth 215.82 mm Width 610.11 mm Height 521.84 mm Weight 6.85 kg Speakers Speakers No Display Display Size in Inch 27 " Display Size in cm 68.6 cm Display Resolution WQHD (2560 x 1440 Pixel) Display Aspect Ratio 16:9 Display Refresh Rate 240 Hz Display Panel Type QD OLED Colour depth max. 1.07 billion colours (10 bit) Colour space 100% sRGB, 99% DCI-P3 Contrast Ratio (Static) 1,500,000:1 Curved Display No Display Response Time 0.03 ms Display Response Time (Grey-to-Grey) 0.03 ms HDR Yes HDR Standard VESA DisplayHDR True Black 400 Screen Brightness SDR / normal 250 cd/m² Viewing angle 178° horizontal / 178° vertical Display Surface Type glossy / non-reflective Touchscreen No Ergonomics Height adjustment Yes Min. Adjustable Height 0 mm Max. Adjustable Height 110 mm Min. Swivel -20 ° Max. Swivel 20 ° Min. Tilt -5 ° Max. Tilt 20 ° Pivot Yes Connectivity Peripheral connectors 3.5 mm jack 3-pole, TRS (1x) Mounting Vesa standard 100 x 100 mm External Ports Display Connectors HDMI (2x), Display Port (1x) Display Connector Standards HDMI 2.1, DisplayPort 1.4 USB Hub No
Adaptive Sync Technology (G-SYNC / FreeSync)	AMD FreeSync Premium Pro, NVIDIA G-SYNC Compatible
Standard / specification	HDMI 2.1, DisplayPort 1.4
Lighting / RGB	No
Webcam	No
Length / Depth	215.82 mm
Width	610.11 mm
Height	521.84 mm
Weight	6.85 kg
Speakers	No
Display Size in Inch	27 "
Display Size in cm	68.6 cm
Display Resolution	WQHD (2560 x 1440 Pixel)
Display Aspect Ratio	16:9
Display Refresh Rate	240 Hz
Display Panel Type	QD OLED
Colour depth	max. 1.07 billion colours (10 bit)
Colour space	100% sRGB, 99% DCI-P3
Contrast Ratio (Static)	1,500,000:1
Curved Display	No
Display Response Time	0.03 ms
Display Response Time (Grey-to-Grey)	0.03 ms
HDR	Yes
HDR Standard	VESA DisplayHDR True Black 400
Screen Brightness SDR / normal	250 cd/m²
Viewing angle	178° horizontal / 178° vertical
Display Surface Type	glossy / non-reflective
Touchscreen	No
Height adjustment	Yes
Min. Adjustable Height	0 mm
Max. Adjustable Height	110 mm
Min. Swivel	-20 °
Max. Swivel	20 °
Min. Tilt	-5 °
Max. Tilt	20 °
Pivot	Yes
Peripheral connectors	3.5 mm jack 3-pole, TRS (1x)
Vesa standard	100 x 100 mm
Display Connectors	HDMI (2x), Display Port (1x)
Display Connector Standards	HDMI 2.1, DisplayPort 1.4
USB Hub	No