The TE Connectivity 2227326-1 is a heat sink and mounting hardware kit designed specifically for CFP connector modules. The kit includes the heat sink element plus the screws, clips, or standoffs needed to secure it to the module. Box packaging means it ships as a single unit, not on a reel or in bulk tube.
Compatibility — CFP Connectors Only
This accessory is listed for use with CFP connectors — the 100 Gb/s and 400 Gb/s form-factor pluggable optical transceiver interfaces. It is not a generic heat sink; the mounting hole pattern, footprint, and thermal interface dimensions are specific to the CFP cage. If you are working with CFP2, CFP4, QSFP, or SFP cages, this kit will not fit without modification. The base product number 2227326 identifies the family; the -1 suffix denotes this specific variant.