Amazon.com: Cable Matters USB to Serial Adapter Cable (USB to RS232, USB to DB9) 3 Feet : Electronics
StarTech.com USB to Serial Adapter - 3 ft / 1m - with DB9 to DB25 Pin Adapter - Prolific PL-2303 - USB to RS232 Adapter Cable - Add an RS232 serial port
Amazon.com: Letotech Cross Wired USB Serial Cable DB9 CP2102 ZT232 USB RS232 to DB9 Null Modem Cable PC Control TV Cable (Null Modem Pinout) : Electronics
USB 2.0 To Serial DB9 Male (9 Pin) RS232 Cable Adapter - Sabrent
USB to RS232 TTL | CMOS Adapter Cable with Terminal Block - Coolgear
Tripp Lite 5ft USB to Serial Adapter Cable USB-A to DB9 RS-232 M/M 5' - serial adapter - USB - RS-232 - U209-000-R - USB Adapters - CDW.com
USB-C 2.0 to Serial RS-232 Adapter w/ LED Indicators
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 to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com Belgium
USB 2.0 to Serial RS232 Cable
USB-A to Serial Adapter Cable - RS232, DB9, 5-ft. | Eaton
USB to RS232 Converter - 6ft - CAB-11304 - SparkFun Electronics
USB to Serial adapter for the FLEX-6000 series – FlexRadio
USB to RS-232 DB9 Serial Adapter/Converter Systembase Multi-1/USB RS232 | eBay
Rocstor Premium 5ft 1 Port USB to Null Modem RS232 DB9 Serial DCE Adapter Cable with FTDI
3' USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
USB to RS232 Converter Cable 1.0 meter - UMC-201
USB 2.0 RS-232 Serial Adapter with LED Indicators
Amazon.com: CableCreation USB to RS232 Adapter with PL2303 Chip 3.3 FT, USB 2.0 to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC, 1M Black : Electronics
Mettler Toledo RS232 to USB Converter Cable for XPR Microbalances and Ultra-Microbalances | Fisher Scientific
USB 2.0 To Serial DB9 Male (9 Pin) RS232 Cable Adapter - Sabrent