Features: 1.Synchronous Control: This USB KVM switch allows you to control up to 4 computers with 1 set of USB keyboard and mouse. Making easily switch between 4 computers on 1 monitor and share 4 USB 3.0 devices. 2.4K 60Hz Supported: This HD KVM switcher supports 4K 60Hz, 2K 120Hz, 4K 30Hz, 3D and 1080P, which makes the image display more delicate and vivid, the image is very clear, and the color is vivid and moving(Make sure your computer and monitor support 4K resolution and use an HD Multimedia Interface 2.0 cable). 3.4 USB 3.0 Ports: This HD KVM switcher has 4 USB 3.0 ports for identifying USB devices such as hubs, hard drives, printers, scanners, and more. Also compatible with wireless keyboard and mouse. 4.EDID Adaptive: This USB KVM switcher can simulate the EDID of the monitor, store the resolution and refresh rate of the display. 5.18Gbps Transmission: This keyboard mouse synchronizer supports ultra fast USB 3.0 data transmission with data transmission speeds up to 18Gbps, and is backward compatible with USB 2.0 and USB 1.1 devices. You can switch between 4 computers by wired remote control (included) or switch by the button on the machine. specification:Item Type: USB KVM Switch Material: Metal Input: 4 x HD Multimedia Interface, 4 x USB3.0 (USB A) Video Output: 1 x HD Multimedia Interface Interface Version: HD Multimedia Interface 2.0, HDCP 2.2 Transmission Rate: 18Gbps Resolution: 3840 x 2160 60Hz, Backward Compatible Downstream Input: 4 x USB3.0 (USB A) Power Consumption: Maximum 3W PackageList:1 x USBKVMSwitch 4 x USB 3.0 1 x HD Multimedia Interface 1 x Switch Extension Cord 1 x Power Cord 1 x User Manual