Note: 1.This is a USB to TTL Serial Cable which allows for a simple way to connect TTL interface devices to USB. The I/O pins of this cable are configured to operate at 3.3V specifically with a Raspberry Pi with each serial pin broken apart. 2.Thanks to its separated pins, this cable is a perfect candidate for powering, connecting, and accessing the login and debug console on the Raspberry Pi. 3. The FTDI cable is designed around an FT232, which is housed in a USB-A connector. The other side of the cable is terminated with a separated 4-pin connector with the following pinout: RX (Green), TX (White), VCC (Red), and GND (Black). 4. Additional Features: 1. The Cable provides a USB to TTL Serial interface to 4-pin header. Single board USB to asynchronous serial data transfer interface 2. Entire USB protocol handled by the electronics in the cable USB UART interface support for 7 or 8 data bits, 1 or 2 stop bits and odd / even / mark / space / no parity 3.Data transfer rates from 300 baud to 3 Mbaud at TTL levels. 4.+5V output allows external logic to be powered from the USB port VCC Output rating current Max. 500mA Transmit and receive LEDs 5. UHCI / OHCI / EHCI host controller compatible. Low USB bandwidth consumption.