The 4-port USB switch supports up to 4 computers to share 4 USB devices, such as wireless keyboards, mice, printers, and USB cameras. 5Gb data transfer USB 3.0 switch selector supports transferring files in seconds (10x faster than USB 2.0). USB Switch 3.0 is backward compatible with USB 2.0/1.1. Simple plug-and-play works on for Windows, macOS, Chrome OS and Linux computers, just plug in and enjoy productivity. The USB switch selector is designed with a mini charging port, suitable for high-power devices such as hard drives, headphones, and other USB devices to work more stably. (Includes USB power cord) Using the USB switching button or wired remote control, you can freely switch multiple USB devices between four computers with just one click, and a green LED indicates the active computer. Material: abs colour: Black Package Contents: 1 x Host 4 x USB A-B 3.0 cable 1 x Control cable 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.