FTDI Chip USB to 3.3v TTL UART Serial Converter Wire End Stripped Connector Flash Program Download Cable 6FT Compatible TTL-232R-3V3-WE : Electronics - Amazon.com
TTL-232R-5V-PCB - Ftdi - USB Interface, Custom Application Design, FT232R
TTL-232R-3V3-AJ - Ftdi - Cable, USB to TTL, Serial Converter
TTL-232R-5V-PCB - Ftdi - USB Interface, Custom Application Design, FT232R