The TE Connectivity 1735284-3 is a 22-position SATA receptacle — the board-side half of a standard Serial ATA interconnect. It sits in the base product family 1735284, which covers the SATA power and signal interface common in storage drives and backplanes.
Surface mount with board lock means the footprint needs solder pads for the 22 contacts plus through-hole anchor pads for the board lock posts. The board lock takes the mechanical load off the SMT joints during cable insertion and removal — without it, repeated mating cycles can lift the pads. The tray packaging (not tape-and-reel) is standard for this connector volume; plan for pick-and-place handling or manual placement depending on your assembly line.