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USB to 8 RS422/485 ports adapter

Special Price $259.00

Regular Price: $269.00

Quick Overview

The USB-8COMi-M allows you to add eight RS-422 or RS-485 serial ports by connecting to a USB port. Constructed from a rugged metal chassis for industrial applications.

Availability: In stock



Serial ports on USB allow further use of existing devices, even when the computer doesn't offer serial ports.

The high speed serial port with the 128 byte FIFO allow high speed communication, even in heavy loaded systems. Unique features reduce the system load. The serial port also allows unusual speed settings like 500.000bps.

The USB-8COMi-M is a self-powered device, but it also includes a 5Volt 2Amp power supply (pictured above) for applications with high power consumption. This device offers easy plug and play installation and RS-422/RS-485 device connection. There is no need to open the chassis to set the operation modes since the eight DIP switches are located externally for easy RS-422, RS-485 mode settings.

  • Installed as standard Windows COM port
  • SECC metal chassis with DIN rail bracket
  • RS-422 data signals: TxD-, TxD+, RxD+, RxD-, GND, RTS-, RTS+, CTS+, CTS-
  • RS-485 4-wire data signals: TxD-, TxD+, RxD+, RxD-
  • RS-485 2-wire data signals: Data-, Data+
  • Automatic transmit and receive control for 2-wire RS-485 half-duplex mode
  • Built-in termination and biasing
  • High speed serial port with the baud rate up to 921.6K bps
  • Non-standard baudrates supported
  • LEDs of Power, TxD and RxD for easy port monitoring and diagnostics
  • Serial port protected with surge protection of 10KV
  • Self-powered. One switching terminal power adapter of 5V, 2A provided
  • COM port number assigned can be changed to any COM port number required
  • Works with USB 1.1 & 2.0 host port


  • Number of ports: 8 Speed: Up to 921.6 Kbpz RS422/485
  • FTDI Chipset
  • Power: External power supply 5V DC required. Adapter included, 12V not possible.
  • Drivers: Windows 10,8, 7, Vista 98, ME, 2000, XP, 2003 Server and Vista ,Win 7 (32/64 bit) Linux (Kernel 2.4 and up built-in)
  • Connectors: 8 DB9 Male
  • Dimensions: 1997 x 159 x 79 mm (W×L×H)


  • Operating Temperature: 0 to 55 °C (32 to 131 °F)
  • Operating Humidity: 5 to 95% RH
  • Storage Temperature: -20 to 75 °C (-4 to 167 °F)
  • Safety Approvals: CE, FCC

Additional Information

UPC 729440690939
Manufacturer SerialGear
Length No
Color Black
OS Support No

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