32-position, 0.100" pitch, right-angle DIN plug
The 5536386-5: This is a 32-position DIN 41612 plug from TE's Eurocard series, with male pins arranged in two rows at 0.100" (2.54mm) pitch. Style B/2 (1/2 B) keying means the connector has a specific coding that prevents it from mating with a receptacle of a different key — useful in a multi-slot backplane where each slot needs a distinct key to avoid misinsertion.
Board lock and solder termination for backplane duty
Without them, the connector can shift under vibration and open the solder joints. The insulation is a glass-filled polymer thermoplastic rated UL94 V-0, so it won't sustain a flame inside an enclosure.