You will find a port for an exterior power offer but its connected on to the 5V line so if you must externally power, we recommend prying open the case and reducing the pink 5V line with the USB link.
Are you https://dillanlmld177288.ttblogs.com/9936051/5-tips-about-iogear-2x4-usb-3-1-gen-1-type-a-peripheral-sharing-switch-you-can-use-today