StarTech ICUSB232PROC serial adapter cable, USB-C to RS232 (DB9 male), COM port retention, 43 cm

The ICUSB232PROC adds an RS232 serial port (DB9 male) to a USB-C port and stores its assigned COM port number in its own memory. Your POS software settings stay intact even when the cable is unplugged and moved to another port.

The same COM port every time

Many POS applications are set to use a fixed COM port for the receipt printer or cash drawer. This adapter saves the port number in non-volatile memory and reassigns it when reconnected, even to a different USB port. That avoids a printer suddenly going silent in the middle of the day.

Older serial devices on a USB-C computer

The Prolific PL2303GT chipset supports up to 921.6 kbps with a 512-byte FIFO buffer. The adapter is USB bus powered, and the DB9 end has screw locks that keep the connection in place.

Technical specifications

• Connectors: USB-C (male) to DB9 RS232 (male), screw locks
• COM port retention: yes, non-volatile memory
• Chipset: Prolific PL2303GT
• Maximum baud rate: 921.6 kbps
• FIFO buffer: 512 bytes
• Cable length: 43 cm
• Power: USB bus powered
• Operating systems: Windows 7 or later, macOS 10.11 or later, Linux 2.6 or later
• Colour: black
• Weight: 36 g
• Warranty: 2 years (manufacturer)