43-inch 4K (3840 x 2160) DSC gaming monitor with an ultra-fast 144Hz refresh rate Aspect Ratio is 16:9; Viewing Angle (CR≧10) is 178°/ 178°; Brightness (Typ.) is 750cd/㎡ and Brightness (HDR, Peak) is 1,000 cd/㎡ Feature ELMB (1ms MPRT) and support FreeSync Premium Pro technology to eliminate screen tearing and choppy frame rates 4K at 120 Hz via HDMI 2.1 to make the most of the next gen consoles’ mind-blowing performance GameFast Input Technology minimizes input lag and provides much faster motion delivery from end devices to monitor High dynamic range (HDR) technology with DisplayHDR 1000 certification and 90% DCI-P3 professional color gamut ensures exceptional contrast and color performance