The Acer XB281HK monitor is packed full of features such as a 28in 4K UHD display with a massive 3840x2160 resolution, 1ms response time, 60Hz refresh rate, G-SYNC technology, speakers, USB 3.0, DisplayPort and HDMI. Game with no compromise - the Acer Predator comes with an aggressive new design and a feature list designed to take your gaming experience to the next level.