USB to Serial adapter for the FLEX-6000 series – FlexRadio
Plugable USB to RS-232 DB9 Serial Adapter (Prolific PL2303HX Chipset) – Plugable Technologies
USB-COM-U USB-Serial Cable 45-Inch ($14.95) : Saelig Online Store
Mini USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & 3ft. USB Extension Cable
Amazon.com: TRENDnet USB to Serial 9-Pin Converter Cable, Connect a RS-232 Serial Device to a USB 2.0 Port, Supports Windows & Mac, USB 1.1, USB 2.0, USB 3.0, 21 Inch Cable Length,
Rocstor Premium 5ft 1 Port USB to Null Modem RS232 DB9 Serial DCE Adapter Cable with FTDI
USB to RS232 Serial Converter -- DataPro
Keyspan RS232 to USB-A Adapter, DB9, 3-ft Cable | Eaton
Tripp Lite Keyspan High Speed USB to Serial Adapter 3ft USB Cable TAA - USA-19HS - -
USB-A to Serial Adapter | CODi Worldwide
High-Speed USB-to-Serial Adapter for Windows 8 32/64-bit - U.S.Converters
Thunderlinx™ USB to Serial adapter - U.S. Converters LLC
Amazon.com: SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P) : Electronics
C2G 1.5ft USB to DB9 Serial Cable - RS232 Adapter Cable - Serial adapter - USB - RS-232 - blue | Dell USA
Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232 / DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) : Electronics
3' USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
USB 2.0 RS-232 Serial Adapter with LED Indicators
USB to RS-232 Serial Adapter DB9 - 8 Inch Short Cable
USB to Serial Adapter Cable
USB to Serial RS-232 DB9 Adapter FTDI Chipset w/ 15kV ESD Protection, Windows 11 Support - Coolgear
Pololu USB-to-Serial Adapter
USB 2.0 To Serial DB9 Male (9 Pin) RS232 Cable Adapter - Sabrent