Acer SA1 series 23.8-inch Full HD monitor has an amazing thin enclosure with a frameless bezel. Through AMD Radeon technology the game’s frame rate is determined by your graphics card not the fixed refresh rate of the monitor giving you a serious competitive edge. The design saves space on your desk and lets you place multiple monitors side by side to build a seamless big-screen display. The remarkable 100 Million:1 contrast ratio ensures a crystal-clear viewing experience while rapid 1ms VRB response time keeps moving images sharp. It also supports HDMI & VGA inputs offering greater compatibility. High Level Specifications are 23.8 Full HD (1920 x 1080) Widescreen IPS Monitor with AMD Radeon FreeSync Technology Panel Type: IPS Response Time: 1ms (VRB) Refresh Rate: 75Hz Acer VisionCare Technologies Ports: 1 x HDMI Port & 1 x VGA Port