Amazon.com: CableCreation USB to RS232 Serial Adapter (FTDI Chip), 6.6 Feet USB to DB9 Female Converter Cable for Windows 10, 8.1, 8, 7, Vista, XP, Linux and Mac OS X, macOS, 2 Meters/Black : Electronics
Amazon.com: Cable Matters USB to Serial Adapter Cable (USB to RS232, USB to DB9) 3 Feet : Electronics
Amazon.com: StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with FTDI – Null Modem - USB 1.1 / 2.0 – Bus-Powered (ICUSB232FTN) : Electronics
USB to Serial adapter for the FLEX-6000 series – FlexRadio
USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com France (en)
USB to RS232 Converter Cable 1.0 meter - UMC-201
PRO Single Port USB to Serial Adapter with Activity LED 3ft.
StarTech.com USB to Serial Adapter - Prolific PL-2303 - 1 port - DB9 (9-pin) - USB to RS232 Adapter Cable - USB Serial - Add an RS232 serial port to your laptop
USB 2.0 RS-232 Serial Adapter with LED Indicators
USB to Serial adapter, USB to RS232 converter
1.5ft (0.46m) USB to DB9 Serial RS232 Adapter Cable | Adapters and Couplers | Audio Video
Amazon.com: Legrand - C2G USB to DB9 Serial Adapter Cable, Adapter Cable, USB to Desktop Adapter, 1.5 Foot Adapter Cord, Gray, 1 Count, C2G 26886 : Electronics
USB-C to Serial Adapter, RS232
Mettler Toledo RS232 to USB Converter Cable for XPR Microbalances and Ultra-Microbalances | Fisher Scientific
USB to RS-232 Serial Adapter DB9 - 8 Inch Short Cable
Four-port USB to serial RS232 converter / adapter
USB to RS232 Serial for Vista -- DataPro
RS232 to USB Adapter Cable, 5-ft | Eaton
IOGEAR - GUC232A - USB to Serial Adapter
Dual port RS232 Serial to USB adapter for RS232 data conversion.
