Cable USB TO RS232 CONVERTER,FTDI - Overview - METTLER TOLEDO
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
Amazon.co.jp: rs232c USB Converter, CableCreation USB to RS232 Adapter [Built-in FTDI Chipset] Gold Plated USB 2.0 (Male) to RS232 (Male) DB9 Pin Serial Converter Cable Compatible with Windows 10 / 8.1 /