The SDP50Z is a 50-way D-sub Plug, standard D series, made of steel with yellow passivation over zinc plate, gold-plated contacts. Also feature dimples to enhance continuity and provide good EMI/RFI shielding. Two part thermoplastic mouldings, Flame retardant to UL94V-O insulators. Copper alloy, gold-plated over nickel contacts. 90° right angled pins for flow soldering onto a printed circuit board.