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StarTech.com USB C to Serial Adapter Cable with COM Port Retention, 16" (40cm) USB Type-C to RS232 DB9 Converter Cable, Windows/Mac/Linux

StarTech.com USB C to Serial Adapter Cable with COM Port Retention, 16" (40cm) USB Type-C to RS232 DB9 Converter Cable, Windows/Mac/Linux

We currently have 716 in stock.
SKU: MPN: ICUSB232PROC UPC:
Product Description

This USB-C™ to serial adapter lets you connect your USB-C devices to your legacy serial equipment. It converts a USB-C port on your laptop or computer into an RS232 DB9 serial port with COM port retention. This gives you a cost-saving and convenient way to connect to serial devices such as point-of-sale terminals, serial modems, industrial equipment, and a wide variety of other RS232 peripherals.

Connect with ease

The RS232 adapter cable is compatible with Windows®, macOS and Linux® operating systems, which makes it easy to integrate into mixed environments.

Built-in convenience

A time-saving and convenient USB/serial solution, the adapter retains assigned serial COM port values in nonvolatile memory, allowing the same values to automatically be re-assigned to the adapter serial port if disconnected and reconnected, or disconnected from one USB port and installed in another.

The USB-C serial cable also supports advanced features like remote wake-up and power management control.

The ICUSB232PROC is backed by a StarTech.com 2-year warranty and free lifetime technical support.


  • USB-C TO SERIAL ADAPTER CABLE: Interface with Serial RS-232 (DB9) equipment using this USB Type-C Serial adapter converter cable w/ COM port retention; Male DB9 connector features screw-lock nuts; Cable length of 16" [40 cm]
  • TECH SPECS: 921.6 Kbps baud
  • 512 byte FIFO
  • Data bits of 5/6/7/8 and stop bits 1/1.5/2
  • Parity Modes of None, Xon/Xoff, RTS/CTS, DTR/DSR
  • Flow control options Odd/Even/Mark/Space/None
  • Black
  • COM PORT CONFIGURATION RETENTION: Using built in, non-volatile memory, this adapter is able to save assigned serial COM port values and automatically re-assign them, even when reconnected to a different port
  • APPLICATIONS: Using your laptop's USB-C port, control serial RS232 equipment such as PLCs, scanners, sensors, oscilloscopes, medical equipment, scales or receipt printers; Use in scientific/laboratory, & manufacturing/automation applications
  • HOST COMPATIBILITY: Driverless setup for easy install; Tested on major operating systems, including Windows 7 and up, macOS 10.11 and up, Linux 2.6 and up; USB bus powered; Backed for 2-years

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This USB-C™ to serial adapter lets you connect your USB-C devices to your legacy serial equipment. It converts a USB-C port on your laptop or computer into an RS232 DB9 serial port with COM port retention. This gives you a cost-saving and convenient way to connect to serial devices such as point-of-sale terminals, serial modems, industrial equipment, and a wide variety of other RS232 peripherals.

Connect with ease

The RS232 adapter cable is compatible with Windows®, macOS and Linux® operating systems, which makes it easy to integrate into mixed environments.

Built-in convenience

A time-saving and convenient USB/serial solution, the adapter retains assigned serial COM port values in nonvolatile memory, allowing the same values to automatically be re-assigned to the adapter serial port if disconnected and reconnected, or disconnected from one USB port and installed in another.

The USB-C serial cable also supports advanced features like remote wake-up and power management control.

The ICUSB232PROC is backed by a StarTech.com 2-year warranty and free lifetime technical support.


  • USB-C TO SERIAL ADAPTER CABLE: Interface with Serial RS-232 (DB9) equipment using this USB Type-C Serial adapter converter cable w/ COM port retention; Male DB9 connector features screw-lock nuts; Cable length of 16" [40 cm]
  • TECH SPECS: 921.6 Kbps baud
  • 512 byte FIFO
  • Data bits of 5/6/7/8 and stop bits 1/1.5/2
  • Parity Modes of None, Xon/Xoff, RTS/CTS, DTR/DSR
  • Flow control options Odd/Even/Mark/Space/None
  • Black
  • COM PORT CONFIGURATION RETENTION: Using built in, non-volatile memory, this adapter is able to save assigned serial COM port values and automatically re-assign them, even when reconnected to a different port
  • APPLICATIONS: Using your laptop's USB-C port, control serial RS232 equipment such as PLCs, scanners, sensors, oscilloscopes, medical equipment, scales or receipt printers; Use in scientific/laboratory, & manufacturing/automation applications
  • HOST COMPATIBILITY: Driverless setup for easy install; Tested on major operating systems, including Windows 7 and up, macOS 10.11 and up, Linux 2.6 and up; USB bus powered; Backed for 2-years