RedCOM USB-COM (Mini, DB9) compact converter from USB to RS232
USB to RS-232 Adapter (35cm) - UC232A, ATEN Converters | ATEN Corporate Headquarters
USB RS232 Cables
StarTech.com 3 ft 1m USB to USB C Cable - USB 3.1 (10Gpbs) - USB-IF Certified - USB A to USB C Cable - USB 3.1 Type C - USB31AC1M - USB Cables - CDW.ca
ICUSB2322F StarTech.com | USB to Serial Adapter - 2 Port - COM Por | 179-7982 | RS Components
usb to serial – Heureka.sk
ICUSB232PRO - Startech - Converter, USB 2.0 A Plug to RS-232 Serial, 921.6 Kbps
6FT RS232 DB9 9Pin Female to USB 2.0 A Male Serial Cable Adapter Converter Cord | eBay
Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
LILLHULT USB-A na USB-C, tmavosivá, 1.5 m - IKEA
USB-RS232-WE-5000-BT_0.0 - Ftdi - Cable, USB to RS232 Converter, Wire-End
USB to RS232 Converter - 6ft - CAB-11304 - SparkFun Electronics