27-inch QHD(2560x1440) gaming monitor with 180Hz refresh rate designed for professional gamers and immersive gameplay ASUS Extreme Low Motion Blur Sync (ELMB Sync) technology enables ELMB and variable-refresh-rate technologies to work simultaneously to eliminate ghosting and tearing for sharp gaming visuals with high frame rates FreeSync Premium, G-Sync compatible and AdaptiveSync technology delivers a seamless, tear-free gaming experience by enabling VRR (variable refresh rate) by default High Dynamic Range (HDR) technology supports HDR-10 format to enhance bright and dark areas DISPLAY Panel Size (inch) : 27 Aspect Ratio : 16:9 Display Viewing Area (H x V) : 596.74 x 335.66 mm Display Surface : Non-Glare Backlight Type : LED Panel Type : Fast IPS Viewing Angle (CR≧10, H/V) : 178°/ 178° Pixel Pitch : 0.233mm Resolution : 2560x1440 Color Space (sRGB) : 130% Brightness (Typ.) : 250cd/㎡ Contrast Ratio (Typ.) : 1000:1 Display Colors : 16.7M Response Time : 1ms(GTG) Refresh Rate (Max) : 180Hz HDR (High Dynamic Range) Support : HDR10 Flicker-free : Yes