GearMo FTDI USB to UART with +3.3V TTL Adapter (OEM FTDI Cable) USB to UART with +3.3V TTL Adapter Fully assisted hardware (RTS#/CTS#) or X-On / X-Off software handshaking UART interface support for 7 or 8 data bits, 1 or 2 stop bits and odd / even / mark / space / no parity +3.3V output allows external logic to be powered from the USB port Voltage level Supports +3.3V based UART signals and +3.3V / 50mA power output