One monitor. Two worlds. The ViewSonic® XG275D-4K is a versatile 27” display designed for serious professionals who are equally committed to gaming. Switchable refresh rate technology allows you to choose between a lightning-fast 288Hz refresh rate and 0.05ms response time at Full HD for competitive gaming, or stunning 144Hz at 4K resolution for immersive visuals. As the ultimate gaming hub, this monitor allows you to connect your console via HDMI for lag-free gameplay, or connect your PC through DisplayPort to enjoy breathtaking visuals in incredible 4K detail.