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XFP Cage Assembly

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Multiple gaskets enhance the Molex XFP cage assembly to provide superior electromechanical interference (EMI) protection.

XFP represents the new 10 Gigabit Small Form Factor Pluggable system of modules and interconnects that convert serial electrical signals to external serial optical or electrical signals. The components include an industry-standard pluggable module , cage hardware and IC interfaces. The technology is designed to support 10Gigabit Fibre Channel, 10Gigabit Ethernet and OC192/STM-64.

The Molex XFP cage assembly shields the 30-circuit XFP connector (74441-0017) and mating copper or optical transceiver. The cage assembly is a metal frame designed to be bezel-mounted to an I/O panel with compliant pins for pressing onto the host PCB.

The cage assembly features four EMI gaskets: front, upper rear, intermediate rear, and lower rear. These gaskets block any EMI emissions emanating from the transceiver when installed. The front flange provides a flat surface to contact the EMI gasket (attached to the perimeter of the bezel cutout) and stabilizes the cage assembly during insertion and extraction of the transceiver. Active latches on the transceiver lock the transceiver in place and the hard stop controls the insertion depth of the transceiver.

Heatsinks are optional for applications requiring increased heat dissipation and are attached to the cage assembly using a clip. This allows insertion and extraction of the transceiver while maintaining the necessary contact between the heat sink and the transceiver.


  • Provides a universal design for the transceiver that will be suitable for all applications
    • OC192/STM-64 (9.95 Gbps)
    • 10 Gigabit Fibre Channel (10.5 Gbps)
    • G.709 (10.7 Gbps)
    • 10 Gigabit Ethernet (10.3 Gbps)
  • Simple design based on proven Small form-Factor Pluggable (SFP) technology
  • Provides a range of features for options including:
    • EMI containment
    • Thermal dissipation
    • Copper or fiber optic pluggable modules
  • EMI containment is controlled by various EMI gaskets on the cage and bezel
  • Heat sinks available in various heights


  • Networking
  • Switches
  • Telecommunications
  • Router

XFP Receptacles

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Molex 's 30-circuit XFP host connector enables the use of emerging gigabit-speed hot-pluggable transceiver modules for horizontal front-panel access. It conforms to the host-board layout as defined in the 10 Gigabit Small Form Factor Pluggable (XFP) Multi-source Agreement (MSA) for 10-Gigabit data rates.

Molex 's right-angle SMT interconnect is hot-pluggable and is ideal for use in switches, routers and other storage equipment. Module pluggability increases configuration flexibility by providing postponement manufacturing capability and a pay-as-you-populate cost structure for the end-user after installation.

This host connector features a compact, high bandwidth interface to support the XFI ("Ziffy") 10Gbps serial electrical interface specification. It is typically used in conjunction with an XFP cage, flange and EMI gasket assembly, along with a heat sink and attachment clip, to connect an optical LC duplex or electrical XFP transceiver module to the host board.


  • High-speed contact design is capable of 10Gbps data signal speeds
  • 15 or 30-microinch gold plating provides optimization of performance and cost
  • SMT design-in tape & Reel packaging for robotic, pick and place processing
  • Lubricated contact option for extended life applications (GR-1217)


  • Data Networking
  • Telecommunications
  • Storage

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  • Connectors|Connector-I/O