This cable enables you to connect your Raspberry PI to a PC system easily. At the same time, the cable provides 5 V at 500 mA via the USB port on the PC, so that you do not need to use a separate power supply unit. The PL2303HX chip integrated into the cable ensures that both devices can exchange data with each other. Windows XP, Vista, 7 and 8 are supported. Plug pin assignment: Red = Power +5 V Black = Earth White = RX Green = TX https://elecena.pl/product/9696554/raspberry-pi-usb-to-ttl-0-9-m-pl2303hx 2017-08-05 https://elecena.pl/product/9696554/raspberry-pi-usb-to-ttl-0-9-m-pl2303hx 2021-04-29