Acer 27-inch IPS panel monitor; resolution 2560 x 1440; LED Backlight AMD FreeSync Technology; Flicker-Free; DVI-in; HDMI-in; USB 3.0 27" Display (16:9 Aspect Ratio) 2560 x 1440 (native and maximum) Resolution .233mm Pixel Pitch 144Hz - Using Display Port Signal Inputs: 1 x Display Port, 1 x HDMI 2.0 Port, 1 x DVI & 1 x MHL. Please refer the User Guide before use which is very essential.