This mini USB hub has four USB two.0 ports Every single with a max complete transmission quicken to 480 MBps. All 4 ports are powered thru the USB micro-B cable. There's also only one on-off switch that controls the 4 https://www.leo-brand.com/products/iogear-2x4-usb-3-1-gen-1-type-a-peripheral-sharing-switch