Amazon.com: StarTech.com 1 Port USB to Serial RS232 Adapter - Prolific PL-2303 - USB to DB9 Serial Adapter Cable - RS232 Serial Converter (ICUSB232V2) : Electronics
1 ft USB to Serial DB9 Adapter Cable - Serial Cards & Adapters | StarTech.com Belgium
Mini USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & 3ft. USB Extension Cable
6ft. USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & FTDI Chipset - Coolgear
USB to Serial Converter Cable, USB to DB9 Male Connector with Male Hardware, Cat. No. 528693
U209-000-R Tripp Lite | Cable Assemblies | DigiKey
USB to RS-422 DB9 Interface - ave-nl
USB 4-Port Serial Adapter - USB 2.0 to DB-9 Port RS232 with FTDI CHIP - Coolgear
USB to RS232 DB9 Adapter - ave-nl
StarTech.com USB to Serial Adapter - Null Modem - FTDI USB UART Chip - DB9 (9-pin) - USB to RS232 Adapter - Add a Null Modem RS232 serial port to your laptop
3' USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com Belgium
Serial Data Cable/USB to Serial Adapter Combo – ThunderMax
USB-C to serial RS-232 DB9 Adapter – 5-ft. | Black Box
3ft USB to Serial Cable/RS232 Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com Belgium
Amazon.com: StarTech.com 1 Port USB to Serial RS232 Adapter - Prolific PL-2303 - USB to DB9 Serial Adapter Cable - RS232 Serial Converter (ICUSB232V2) : Electronics
72 Inch USB DB-9 Serial Hi-Speed Adapter - Prolific Chipset - Coolgear