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Express Systems will have an EARLY CLOSING Thursday, June 18th, 2026 and will be CLOSED June 19th, 2026 in observance of Juneteenth. We will resume regular business hours Monday, June 22nd, 2026 at 9:00am EST.
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  • DeviceMaster EtherNet/IP to Modbus
  • DeviceMaster PROFINET to Modbus
  • IO-Link Gateways
    • IO-Link Blocks
    • IO-Link Master Gateways
  • Industrial MultiPort Serial Boards
    • RocketPort BroadPort 550 Serial Boards & SMPTE Serial Boards
    • RocketPort Express (PCIe) Serial Boards
      • RocketPort Express PCIe 4 Port
      • RocketPort Express PCIe 8 Port
      • RocketPort Express PCIe 16 Port
      • RocketPort Express PCIe 32 Port
      • RocketPort Express Interface Boxes/Cables
    • RocketPort Infinity (UPCI and PCI-X) Serial Boards
      • RocketPort Infinity PCI-x 4 Port
      • RocketPort Infinity PCI-x 8 Port
      • RocketPort Infinity PCI-x 16 Port
      • RocketPort Infinity PCI-x 32 Port
      • RocketPort Infinity Interface Boxes/Cables
  • RocketLinx Ethernet Switches
    • RocketLinx Accessories
    • RocketLinx DIN Rail Managed Switches
    • RocketLinx DIN Rail Power Supplies
    • RocketLinx DIN Rail Unmanaged Switches
    • RocketLinx PoE Switches
      • RocketLinx PoE DIN Rail Managed Switches
      • RocketLinx PoE DIN Rail Unmanaged Switches
    • RocketLinx Rackmount Managed Switches
  • DeviceMaster Ethernet Device Server
    • DeviceMaster 1 Port
    • DeviceMaster 2 Port
    • DeviceMaster 4 Port
    • DeviceMaster 8 Port
    • DeviceMaster 16 Port
    • DeviceMaster 32 Port
  • Industrial Ethernet Media Converters
  • Industrial Serial to Fiber Converters
  • DeviceMaster UP Gateways
    • DeviceMaster UP 1 Port
    • DeviceMaster UP 2 Port
    • DeviceMaster UP 4 Port
  • Accessories
    • Comtrol Power Accessories
    • Comtrol Cable & Interface Assemblies
    • Comtrol Mounting Hardware
    • Pepperl+Fuchs Comtrol Misc Accessories
    • RocketLinx SFP Fiber modules
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