Board-to-Board or Cable — What This 28-Pin Receptacle Connects
The 1-535542-4: The through-hole solder termination anchors the part to the board, and the push-pull fastening means it's a friction-lock mate, not a screw or latch.
At 28 positions loaded across two rows, the 1-535542-4 takes up a 14-pin-per-row footprint on 0.100" pitch — about 1.4" of board edge per row.
It's in current manufacture and orderable through independent distribution. The base product number is 535542, and the part ships in a tube.
