The TE Connectivity 2170806-4 is a QSFP28 cage assembly — a ganged (1 x 2) configuration with an integrated heat sink, designed for 28 Gbps per lane (100 Gbps aggregate per port) optical or copper transceiver modules. The EMI shielding integrated into the cage body is essential for containing radiated emissions at these data rates; without it, the open module aperture would couple noise into adjacent channels.
Press-fit termination means the cage pins are pressed into plated through-holes — no solder wicking into the cage body, no reflow profile to manage. The right-angle orientation places the module insertion slot at the board edge, keeping the fibre or copper cable exit clear of adjacent components. The ganged 1 x 2 layout shares a common heat sink across both ports, which simplifies thermal management in a 2-port card-edge zone but means the thermal load of one module affects the other — derate the total per-port power budget if both ports run at full draw.