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) : Grocery & Gourmet Food
USB to TTL Serial Cable - Debug / Console Cable for Raspberry Pi : ID 954 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Startech 3' USB to RS232 DB9/DB25 Serial Adapter Cable - Walmart.com
PRO Single Port USB to Serial Adapter with Activity LED 3ft.
Tripp Lite RS232 to USB Adapter Cable with COM Retention (USB-A to DB9 M/M), FTDI, 5 ft. - USB / serial cable - USB to - U209-005-COM - USB Cables - CDW.com
USB to Serial adapter for the FLEX-6000 series – FlexRadio
Data Cable mini USB RS232 9-pin 5702-33 | Terra Universal
USB to RS232 Converter - 6ft - CAB-11304 - SparkFun Electronics
Mini USB to Serial Adapter Hi-Speed 920K FTDI Chip
Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy