This mini USB hub has 4 USB 2.0 ports Every single with a max full transmission hasten to 480 MBps. All 4 ports are powered thru the USB micro-B cable. there is also only one on-off switch that controls the four USB https://albieirtc684242.blogrenanda.com/36333743/about-trendnet-4-port-usb-kvm-switch-kit