The USB-C MicroLink modem provides the hardware interface between Highway Addressable Remote Transducer devices (HART®) and a Windows® PC with a USB port. Universal Serial Bus (USB) drivers make MicroLink compatible with most software developed for RS-232 serial port interface modems. MicroLink appears as an RS-232 Com port to your software.
A rugged design makes MicroLink an ideal choice for field engineers and technicians who service HART devices in an industrial environment.

MicroLink is compatible with all certified HART devices and all leading HART configuration and monitoring software that us an RS-232 serial port for the interface.

MicroLink USB-C HART Protocol Modem Manual (PDF)

> USB-A HART protocol modem
> RS-232 HART protocol modem
> HART Protocol Host App Software


  • Complete HART device interface with USB-C cable

  • Drivers enable virtual RS-232 port for compatibility with existing software

  • Complies with HART physical layer

  • Transformer isolation simplifies loop connections and eliminates grounding effects

  • Rubber and stainless steel enclosure handles rough field use

  • Super low power design for extended portable computer battery life

  • Includes USB drivers for Windows 11, 10, 8, 7, Vista, XP, and 2000

  • FCC and CE approved

  • RoHS compliant

Includes Microflex HART Host 3B app on a CD (60-day trial)
Optional soft case available