Keyspan RS232 to USB-A Adapter, DB9, 3-ft Cable | Tripp Lite
Amazon.com: USB to Serial Adapter, BENFEI USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M : Electronics
USB To RS232 D SUB DB 9Pin SERIAL Port Connecting Cable Adapter w/ driver 1m 100cm USB 2.0 To RS 232|usb to rs232|usb tousb 2.0 - AliExpress
Sabrent USB to Serial Cable Adapter (SBT-USC1M) | SBT-USC1M
USB to RS232 Serial for Vista -- DataPro
USB Solo (USB to Serial), DB9 (Male) with Cable, 3.7 ft. (111.8 cm)