1. A of KVM switch 4 SB devices switch with one key 2. Pinwei Technology Disk, printer with one-key switching of keyboard, mouse and display 3. Two-machine shared keyboard, mouse and screen host 1 host 2 can share sets of keyboard and mouse/display/printer/disk through KVM switcher 4. It is to use without hot. The heat dissipation holes are designed on both sides, which can dissipate heat quickly and use it for 7 x 24 hours, and it will not crash due to overheating. 5. Compatibility is better Compatible with Win7/win8/wn10/ system notebook/desktop , game console, set-top box, network box Know the blue indicator light of the working status in real time, and identify the host being connected Automatically identify resolution interface supports DDC function, supports computer to read display information and automatically adjust splitter resolution Product Description Pixel bandwidth: 225MHZ full digital Interface bandwidth: total bandwidth 10.2Gbps Support resolution: 4Kx2K@30Hz Interface type: |-A interface Impedance: 100 input/output distance: less than 5 meters Interface protocol: USB2.0 PC input interface type: USB-B Output interface type: USB-A Power supply: USB power supply Power consumption: MAX 2W Temperature Working temperature: -5C~+70C Humidity Working humidity: 5%~90% Color: Black Material: plastic Package Contents: 1 x | KM21 switch host 1 x with English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.