We offer PCI Express Cards to expand system serial COM ports for growing networks and serial peripherals.

  • 1 Port PCI Express RS422/485 w/ Optical Isolation & Surge Suppression

    Add-on Cards $114.99 Part No: SG-PCIE1S422485IS
  • 2 Port PCI Express RS422/485

    2 Port $79.95 Part No: SG-PCIE2S422485
  • 2 Port PCI Express RS422/485 w/ Breakout Cable

    2 Port $99.95 Part No: SG-PCIE2S422485OCT
  • 2 Port PCI Express RS422/485 w/ Optical Isolation & Surge Suppression

    2 Port $139.95 Part No: SG-PCIE2S422485IS
  • 2 Port PCIe RS422/485 Breakout Cable – Optical ISO & Surge Suppression

    2 Port $149.95 Part No: SG-PCIE2S422485OCTIS
  • 34mm Express Card to PCI X2 Slot Expansion Box

    Add-on Cards $279.99 Part No: CG-34EXPCI22
  • 34mm Express Card to PCI x4 Expansion Box

    Enclosure $229.98 Part No: 34-EXP-PCI4
  • 34mm ExpressCard HDMI Adapter w/Extension Cable for Expansion Box

    Add-on Cards $59.98 Part No: CG-EXCHDMI2M
  • 4 Port PCI Express RS422/485 w/ Breakout Cable

    4 Port $179.95 Part No: SG-PCIE4S422485OCT
  • 4 Port PCIe RS422/485 Breakout Cable – Optical ISO & Surge Suppression

    4 Port $299.95 Part No: SG-PCIE4S422485OCTIS
  • 8 Port PCI Express RS232/422/485 Module

    8 Port $374.95 Part No: SG-PCIE8SRS422485MOD
  • 8 Port PCI Express RS232/422/485 Module w/ Optical Isolation

    8 Port $599.95 Part No: SG-PCIE8SRS422485MODIS