Ftdi serial adapter

StarTech.com Motherboard Serial Port - Internal - 1 Port - Bus Powered - FTDI USB to Serial Adapter - USB to RS232 Adapt...

Startech.Com Usb To Serial Hub - 8 Port - Com Port Retention - Rack Mount And Daisy Chainable - Ftdi Usb To Rs232 Hub (Icusb23208fd) - Seriell Adapter - Usb 2.0 - Rs-232 X 8 - Svart

Waveshare Industrial USB to RS232 Adapter with Original FT232RL FTDI Chip,USB Type A to RS232 Male DB9 (9Pin) Serial Converter Cable for Cashier Register,Modem,Scanner,Digital Cameras, 5FT/1.5m