This mini USB hub has 4 USB 2.0 ports Every with a max whole transmission quicken to 480 MBps. All four ports are powered thru the USB micro-B cable. you can find also only one on-off switch that controls the four USB https://www.leo-brand.com/products/qvs-displayport-f-to-f-digital-a-v-ultrahd-gender-changer-coupler