Mini USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & 3ft. USB Extension Cable
Amazon.co.jp: Cable Matters USB RS232 Converter Cable 1m USB Serial Converter Cable USB Type A to DB9 Serial Male Support Both Windows Mac OS : Computers
UPORT 1110 | Moxa USB to Serial Converter, RS232, 1 DB9 Male | Distrelec Germany
Amazon.co.jp: DTech 6フィート USB - RS232 DB9メスシリアルアダプターケーブル Windows 11 10 8 7 Mac Linux シリアルからUSB 2.0 (PL2303チップ) : パソコン・周辺機器
Amazon.co.jp: UGREEN RS232 USB Serial Converter Cable, USB 9 Pin Converter Serial Cable, D-sub9 Pin, Compatible with Windows and Mac OS, 3.3 ft (1 m) : Computers