FTDI Serial TTL-232 USB Cable : ID 70 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: DTech USB to TTL Serial 3.3V Adapter Cable TX RX Signal 4 Pin 0.1 inch Pitch Female Socket PL2303 Prolific Chip Windows 10 8 7 XP Vista (6ft, Black) : Electronics
5pcs FTDI FT232BL 5V USB to TTL Serial Cable 3.3V 6Pin Converter Adapter Module | eBay
USB to 3.3v TTL PIN Header Cable
FTDI USB-to-TTL (Serial) Cable 3.3V - RobotShop
CH340G USB to TTL Serial Adapter USB to RS232 TTL Converter Download Flash Line USB to Serial Port for Arduino - Walmart.com
PCsensor USB Switching Cable USB to TTL serial cable
FTDI TTL-232RG-VSW5V USB to TC2030-NL Test Cable | Tag-Connect
Amazon.com: USB to TTL Serial 3.3V UART Converter Cable with FTDI Chip Terminated by 6 Way Header, Works with Galileo Gen2 Boards/BeagleBone Black/Minnowboard Max and More : Electronics