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Please visit for shipping to USA, Canada and Mexico only. For the rest of Americas, please send inquiries to


SKU USB2-H-6016-M

Our Hi-Speed USB to RS422 adapters make it quick and simple to connect one or more RS422 devices to a USB port on your computer. These adapters use Hi-Speed USB for reduced latency and higher baud rates on the serial side. Using the multi-port models, you can add up to 16 RS422 ports using only one USB port on the computer.

RS422 is popular for a wide range of control and monitoring and industrial applications. However, most computers don’t have built-in RS422 ports or even slots on the back to add RS422 cards. Connecting via USB offers compatibility across a huge range of computers as well as easier setup.

With a variety of port numbers and enclosure styles and easy to install drivers for a range of operating systems, these adapters are ideal for adding one or more RS422 ports to your computer.

  • Based on the renowned FTDI FT232H/FT2232H/FT4232H Hi-Speed USB-Serial chipsets and drivers
  • Microsoft Windows® WHQL-certified, macOS, Linux and Windows CE device drivers
  • Each RS422 port can appear as a Virtual Com Port allowing easy use with existing application programs
  • Multi-port units create a separate COM port for each RS422 port with separate settings (such as baud rate and flow control) per port
  • Ports can also be accessed using the FTDI D2xx DLL functions
  • Compact and robust design in a variety of metal and plastic enclosure styles
  • RS422 via DB-9 Male connector (and terminal block on 1- and 2-port metal models)
  • DB-9 RS422 signals: TxD+, TxD-, RxD+, RxD-, RTS+, RTS-, CTS+, CTS-, GND
  • Automatic Hardware (RTS / CTS) and software (X-on/X-off) flow control
  • Transmit and Receive LED indicators help to confirm operation and assist in troubleshooting
  • Available in 1, 2, 4, 8 and 16 port versions
  • 1, 2 and 4-port models powered from the USB port (no external power needed)
  • Optional 5V power out
    • Via terminal block (on 1 and 2-port metal models)
    • Switchable onto CTS-line of DB-9 (on 4, 8 and 16-port metal models)
  • USB 2.0 Hi-Speed (compatible with all USB ports including USB3)
  • Wall mount brackets included (1, 2, 4, 8 and 16 port versions)
  • -40°C to +85°C extended operating temperature range
  • CE / FCC approved

Feel free to browse through the corresponding datasheet for more information.

Part Number Document Type Version File
Datasheet 1.3 Download
USB2-H-6002 Datasheet 1.4 Download
USB2-H-6002 Quick Start Guide  1.1 Download
USB2-H-6004 Datasheet  1.4 Download
USB2-H-6004 Quick Start Guide  1.1 Download
All Products Drivers Installation Guide  1.1 Download

Download Virtual COM Port (VCP) Drivers for Windows, Mac OS and Linux

Order Information
SKU  Ports Housing Connector
USB2-H-6001-M 1 Metal USB-B 
USB2-H-6002 2 ABS USB-mini B
USB2-H-6002-M 2 Metal USB-B 
USB2-H-6004 4 ABS USB-mini B
USB2-H-6004-M 4 Metal USB-B 
USB2-H-6008-M 8 Metal USB-B 
USB2-H-6016-M 16 Metal USB-B