Featuring a breathtaking 4K Ultra-HD resolution and plug-and-play capability, you’ll wonder how you ever used your computer before this AOC Widescreen Monitor. With an ultra-fast response time of only 1ms, a 60Hz refresh rate and FreeSync technology, you’ll be able to enjoy games, movies and more with a smooth visual experience. Multiple inputs are included in the monitor alongside Picture-in-Picture and Picture-by-Picture functions to make multitasking incredibly easy. Monitor Features Display: 28� LED TN panel with 3840 x 2160 resolution Contrast Ratio: 1000:1 Brightness: 300cd.m2 Inputs/Outputs: HDMI, VGA Cables included: HDMI, DisplayPort, VGA