4 Port USB to Quad RS-422 485 Optically Isolated Adapter

Model No. USB-4COMi-SI-M

USB to Serial Adapter for RS422 and RS485 Applications

The USB-4COMi-SI-M is a USB to Quad RS-422 485 Optical isolated serial adapter and is designed for commercial and industrial communication applications where Optical Isolation is a must have. The USB-4COMi-SI-M Serial Adapter instantly adds four RS-422, or RS-485 serial communication ports to your system while offering optical isolation and surge protection.

  • Optically Isolates your RS-422 and RS-485 serial ports.
  • Incorporates DIP Switch control for independent control of serial signal to the port.
  • Has built-in surge and ESD protection of up to 25KV when abnormal electrical occurrences occur.
  • Self-powered, one switching power adapter of 5V, 2A provided.


In stock

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Units Price
1 - 4 $384.95
5 - 11 $373.40
12 - 24 $365.70
25 - 49 $358.00
50+ $346.46
USB to 4 port RS-422 485 Optically Isolated Adapter
4 Port USB to Quad RS-422 485 Optically Isolated Adapter


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