USB-A to serial (RS-232): what do you need?

Your computer has no serial port, so this adds a standard DB9 RS-232 port over USB.

ComputerUSB-A
adapter
DeviceSerial (RS-232)
Best match

USB to serial adapter (RS-232)

  • Some chips need a driver. FTDI-based adapters usually give the least trouble on Windows and Mac, while Prolific-based ones can need a driver on newer systems.
  • Check the equipment's manual for the speed and settings it expects.
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