SB Zero4U 4-PORT USB HUB FOR RASPBERRY PI ZERO 4-PORT USB HUB FOR RASPBERRY PI ZERO. The blue LED on board works the power indicator, and will lights up when power is connected. The USB hub will take power directly from your Raspberry Pi Zero, so you dont need to power the USB hub separately. However you can use the JST XH2.54 connector on board as the alternative power input port. Each USB port has a dedicated white LED as transaction indicator, and a dedicated electrolytic capacitor to help stabilizing the output voltage. If you use this USB hub with other types of computer, you can use a USB cable (not included) to connect the mini-USB port on board to the up-stream USB port.