The TE Connectivity 1-2227303-2 is an SFP cage, not a transceiver module — it's the metal housing that receives the pluggable SFP or SFP+ module on the PCB. This cage carries an EMI shield built into the body, which is the main feature that distinguishes it from a basic unshielded cage. It's the mechanical and thermal interface between the hot-pluggable module and the host board.
This cage terminates by solder to the PCB through the through-hole pins. That layout is standard for front-panel ports where the cable exits the enclosure face.
Packaging for the Assembly Line
This cage ships in Tape & Reel (TR) with a Cut Tape (CT) option, which means it's set up for automated pick-and-place on a high-volume SMT line. The reel format feeds the cage into the placement head without manual handling. For lower-volume builds or prototype runs, the sibling 2227302-3 is the same cage in a Box package — same SFP cage, same EMI shield, same right-angle through-hole footprint, just bulk-packed instead of reeled.