1、HD Multimedia Interface 8x1 Quad Multiviewer: 4K 30Hz KVM HD multimedia interface 8x1 Quad multi viewer is a high performance with 8 HD screen segmentation and seamless switching output switch. It can display 8 HD digital video signal on the same screen, and has a variety of video segmentation, seamless switching 8 HD input signal synchronously. The control methods of the switch is flexible, it can be switched via button and IR control. 2、8 Port KVM Switching Function: The HD Multimedia Interface KVM 8x1 quad multi viewer has two functions, KVM and screen segmentation. Can share 8 computers simultaneously, and also share keyboard and mouse combinations. The KVM switch has flexible control modes and can be switched through buttons and infrared control. USB 1 and USB 2 ports, only for mouse and keyboard. (Supports mouse through mode, the mouse has a cross screen function.) 3、4K 30Hz Resolution, Seamless Switching: 2160p, 1080p, 720p, 1080i, 1024x768, 1360x768, etc. 4K 30Hz supports highest resolution and makes image display more sophisticated. 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. 4、Plug and Play: Plug and play button to toggle the signal source device and press the button to switch 8pcs. 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. 5、Compatibility: This HD multimedia interface 8x1 quad multi viewer is compatible with all laptops and other devices with HD multimedia interface ports. Adapts to for win, for OS X, for UNIX and other operating systems. Item Type: HD Multimedia Interface Multi Viewer Material: Metal Iron Color: Black Remote Control Battery Type: Requires 2 AAA Batteries (Not Included) HD Multimedia Interface Inputs: 8 HD Multimedia Interface Output: 1 Resolution: Up to 4K30Hz, Compatible with 2160P, 1080P, 720P, 1080i, 1024x768, 1360x768 Support Split Modes: Single Screen Mode, 4 Screen Mode, 6 Screen Mode, 8 Screen Mode, 1 Large 5 Small Mode, 2 Large 4 Small Mode, 9 Grid Mode 1 x HD Multimedia Interface Multi Viewer 1 x Remote Control 1 x Adapter 1 x User Manual