2 in 4 Out USB Switch Box: This 4 port USB sharing switch allows one button swapping between 2 computers to share 4 USB peripheral devices without constantly swapping cables or setting up complicated network sharing software.( * Not a KVM switch and does not support a monitor or video transmission. * ) Ideal for Sharing Multiple Devices: This USB Switch can share the USB devices such as printer, scanner, mouse, keyboard, card reader, flash drive, etc. between 2 computers. Wide Compatible System: 4 port USB switch works flawlessly with for 10/8/8.1/7/for Vista/XP, for , for Linux, and for Chrome OS. Driver-free, simply plug and play. One-Botton Switch & LED Light Indicator: You can easily switch between 2 computers with a single click on the button with LED indicating the active computer. USB Switcher make switch effortless. Color: Black Material: ABS Package Contents: 1set * USB 3.0 multi-port hub 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.