【Highest 4K@30Hz Resolution】2160p, 1080p, 720p, 1080i, 1024x768, 1360x768, etc. 4K@30Hz Supports highest resolution and makes image display more sophisticated and realistic. 【Seamless Switching】 The 8 HD digital video signal can be displayed on the same screen, with multiple video segmentation and seamless switching of the 8HD input signal synchronization. 【Plug and play】Plug and play button to toggle the signal source device and press the button to switch 8 pcs freely. Installation is easy, plug and play, no drivers needed. USB power supply: no external power adapter. First connect the USB cable between the PC and the KVM.