Features 1.4 IN 1 OUT: KVM switcher connects the HD multimedia interface HD screen of four computer hosts with USB signals to the switch, enabling multiple computers to share one monitor and one set of mouse and keyboard. 2.INTERFACES: HD KVM switcher supports four HD multimedia interface inputs and four USB inputs, one HD multimedia interface output, mouse and keyboard inputs, and USB HUB function. 3.COMPATIBLE: HD KVM Switcher is compatible with HD multimedia interface 2.0b, DVI1.1, HDCP2.2. Video resolution up to 3840x2160 and 60Hz, 18Gbps. 4.SUPPORTED FORMATS: HD multimedia interface KVM switcher supports RGB4:4:4, YCBCr4:4:4, YCBCr4:4:2, YCBCr4:4:2. Supports sound formats LPCM, 5.1, 7.1CH, 5.1CH. 5.STATIC PROTECTION: 4K HD KVM switcher has built in ESD static protection for safer use. Plug and play, no driver required, more convenient operation. specificationItem Type: KVM Switcher Material: Metal Model: KC 401CY HD Multimedia Interface Version: HD Multimedia Interface 2.0 (DVI 1.1 Compatible), HDCP 2.2 Transmission Rate: 18Gbps (6Gbps Per Channel) Resolution: 3840x2160 and 60Hz Power Supply: USB 5V Power Consumption: Maximum 4W Remote Control Battery Type: 2 x AAA Alkaline Batteries (not Included) PackageList1 x KVMSwitcher 4 x USB Cable 1 x RemoteControl 1 x InstructionManual