The Ckl Dual HDMI KVM Switch 2 Port 4kx2k 2.0USB 922hua is a versatile KVM switch box that allows users to easily switch between two HDMI-compatible devices with resolutions up to 4kx2k. It features two HDMI 2.0 connectors, one for the input and one for the output, as well as two USB 2.0 ports for connecting peripherals. The unit is black in color and does not come with a power supply, making it convenient for users who already have a power supply available. This product is ideal for those looking to seamlessly switch between multiple devices while maintaining high resolution output. It is untested but looks to be in near perfect condition. I do not know if it works