Startech USB-C to RS-232 Serial DB9 Adapter Cable, M/M

MX72210 USB-C to RS-232 Serial DB9 Adapter Cable, M/M
MX72210 USB-C to RS-232 Serial DB9 Adapter Cable, M/M MX72210 USB-C to RS-232 Serial DB9 Adapter Cable, M/M

Product Info

USB-C to Serial Adapter

Connect an RS232 (DB9) peripheral to your USB-C device

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 a RS232 DB9 serial port, giving you a cost-saving way to connect to serial devices such as point-of-sale terminals, serial modems, industrial equipment, and a wide variety of other RS232 peripherals.

  • USB-C™ to straight-through RS232 DB9 serial adapter
  • High-speed 921.6Kbps baud rate
  • Compatible with Windows®, macOS® and Linux®
  • USB-powered: No external power adapter required
  • IT administrators looking to add legacy functionality to newer notebooks, PCs and servers that lack an integrated RS232 port
  • Connect bar code scanners, receipt printers and other point of sale devices
  • Connect, monitor and control industrial/automotive sensors and other sensitive equipment
  • Connect and program LED and digital signage boards


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.

Ready for Mobile or Desktop Applications

The USB-C™ to serial adapter is USB powered, so you don't need an additional external power supply. It's a compact solution that's easy to bring along with your laptop, when you're on the go.

The ICUSB232C is backed by a 2-year warranty and free lifetime technical support.


  • Windows® 7, 8.1, 10
  • Windows Server® 2008 R2, 2012 R2, 2016
  • Mac OS® 10.11 and 10.13
  • Linux 2.6.x to 4.4.x LTS Versions only


  • One available USB Type-C™ port


Product USB-C Serial Adapter Cable
Part Number ICUSB232C
Cable Colour Black
Bus Type USB-C
Standards USB 1.1/2.0 RS232
Interface Serial
Port Style Cable Adapters
Port 1
Connectors 1 x USB Type-C (24-pin) USB 2.0 Male
1 x DB-9 (9 pin, D-Sub) Male
Data Bits 5, 6, 7, 8
FIFO 512 Bytes
Flow Control None, Xon/Xoff, RTS/CTS, DTR/DSR
Max Baud Rate 921.6 Kbps
Parity Odd, Even, Mark, Space, or None Parity Modes
Serial Protocol RS-232
Stop Bits 1, 1.5, 2
MTBF 30,000 hours
Power USB-powered
Temperature Operating: 0°C to 60°C (32°F to 140°F)
Storage: -20°C to 80°C (-4°F to 176°F)
Humidity 0 to 65% RH
Certifications CE, FCC, RoHS Compliant
Dimensions (WxHxL) 1.2" x 0.6" 16.9" (30 x 15 x 430 mm)
Weight 36g

Package Contents

  • StarTech USB-C Serial Adapter Cable
  • Quick Start Guide