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2-port RS422/485 PCIe Card


Availability: In stock



  • Full x1 PCI Express Throughput, 250Mbytes/sec
  • Fully Compliant with PCI Express Base Specifications, Revision 1.1
  • Supports RS485 Auto Transceiver Turn Around by Unique Featured ATTATM Hardware
  • 128-byte deep FIFO per transmitter and receivers
  • Supports 2 DB9-male Connectors over an Octopus Cable
  • Supports Low Profile Form Factor with Optional Low Profile Bracket
  • Support 4-wire RS422/485 and 2-wire RS485 Modes
  • Supports RS422/485 Speed up to 921.6Kpbs
  • Optional Model: Isolated and 15KV ESD Surge Protection
  • Supports Win2000, XP, 2003, 2008, Vista, Win 7 and Linux



The MG-58323 RS422/485 to PCI Express card is designed for your PC, workstation, thin client, or server to provide instant RS422/485 Serial port expansion via the PCI Express bus.

PCI Express provides a scalable, high-speed, serial I/O bus that maintains backward compatibility with PCI applications and drivers. Its architecture defines a high-performance, point-to-point, scalable, serial bus at speed of 250Mbytes/sec to 4GBytes/sec (and 8Gbytes/sec in the future).

The MG-58323 is compatible with new and legacy RS422/485 devices. It is easy to install and use with its plug-and-play feature. It provides the scalability to quickly adapt to new serial technologies. Complete product line offer many choices help you to expand and make your network grow with your requirements.

With the PCI Express Plug-and-Play feature and drivers, simply follow the instructions of Install Wizard, then you are done. You don’t have to deal with I/O address, IRQ jumpers, DMA and others when you are connecting the devices. The System will recognize the device and install the drivers automatically. The MG-58323 is an ideal solution for your expanding applications.



Fully Compliant with x1 PCI Express Base Specifications 1.1

Serial Ports

Two DB9-male RS422/485 Connectors with an Octopus Cable, the key benefits are:

  • Connector: Two DB9 Male Connectors over a DB25 Octopus Cable  Interface: 3 modes are selectable: 4-wire RS422 (TXD+/-, RxD+/-). 4-wire RS485 (TxD+/-, RxD+/-). 2-wire RS485 (Data+/-)
  • Parity: None, Even, Odd
  • Data bits: 5,67,8,9 bits Data Frames
  • Speed: up to 921.6Kbps
  • Terminator: 120 OHM, can be Enabled/Disabled by a Jumper
  • ATTATM: Auto RS485 Transmitter buffer direction control by the ATTATM Hardware. Guarantee Fast Turn Around the Transceiver.

I/O Hardware

  • Two DB9-male Connectors over a DB25 Octopus Cable

OS Support


Windows 2000, XP, 2003, 2008, Vista, Win 7 and Linux

Environmental Specifications

  • Operating Temperature: 0 to 55C (32 to 131F), 10% to 90% relative humidity (non-condensing)

  • Storage Temperature: -40 to 75C (-40 to 167F), 5% to 95% relative humidity (non-condensing)

Form Factor

3.93” x 2.51” (10.00cm x 6.40cm)


  • 2-port RS422/485 PCI Express 1x card
  • DB25 to 2x DB9 breakout cable
  • Low Profile PCI Bracket
  • Driver Disk


Additional Information

SKU MG-58323
Manufacturer No
Length N/A
Color N/A
OS Support N/A

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