The Acer CB280HK 4K UHD is a monitor that offers a response time of 1 ms and a contrast ratio of 100000000:1. This model's 28-inch LED display supports a resolution of 3840x2160 pixels and an aspect ratio of 16:9. Furthermore, the brightness level can be set to 300 Nit for a vivid display and it has DVI and HMDI ports that enable users to access enhanced audio and video files.