Tested & endorsed with the Raspberry Pi Foundation! Small enough to suit as part of your pocket but with more than enough power to cost cellphones, run difficult drives along with other power-hungry... This mini USB https://esmeeaiic687845.pointblog.net/considerations-to-know-about-iogear-2-port-full-hd-kvm-switch-with-hdmi-and-usb-72246232