The TE Connectivity 1963850-2 is a heat sink accessory designed for XFP connector cages. It belongs to the ChipCoolers series and ships in tray packaging. This is a thermal management component, not a connector — it bolts onto the cage to pull heat off the module.
Compatibility Note
This heat sink is listed for use with XFP connectors. It is not a universal fit — verify that the mounting hole pattern and cage dimensions on your specific XFP cage match the heat sink's interface before ordering.