With 4K UHD resolution and a 27" display, this refurbished Acer Predator XB3 gaming monitor delivers clarity and a wide view, so you won't miss any details of your favorite MMO, FPS or RPG titles. The monitor is equipped with nVidia® G-Sync and an overclocked refresh rate of 144Hz, so fast-moving objects appear clear and free of tearing as they zip across the screen. Plus, built-in speakers let you hear the soundtrack, effects and dialogue clearly.