USB to 3.5mm Audio Jack 5V TTL UART Serial Cable with FTDI Chipset Works for LG HDTV LG Televisions Mazur PRM-9000, TTL-232R-5V-AJ : Amazon.co.uk: Computers & Accessories
USB to TTL, UART-Cable, Serial Connector, CP2102 | Paradisetronic.com
UART Cable with RJ45 and USB Connectors - GsmServer
Gravity: 4Pin I2C/UART Sensor Cable for Arduino - 50cm (10 Pack) | The Pi Hut