For any secure connection, the products connected to the 4 Port Hub will have to not exceed a blended existing of 500mA at 5V. External really hard drives need to be linked to an external power resource. This 4 Port hub will not likely demand your devices, it can https://lorenzoecwql.activosblog.com/27830830/adafruit-industries-usb-mini-hub-with-power-switch-an-overview