The Molex 1713951807 is an Impel backplane header — a shielded, press-fit male pin-and-blade connector built for high-density differential-pair routing on a backplane midplane. It sits in the Impel 171395 series, carrying 8 columns that map to 48 differential pairs in a typical layout, all positions loaded. Integral shielding contains crosstalk between adjacent columns, which is the limiting factor at this pitch for 25+ Gbps signalling.
Press-fit termination means no solder — the compliant pin cold-forms into the plated through-hole, which is the standard termination for high-layer-count backplanes where wave solder defects and rework are unacceptable. The 150 V rating is the voltage withstand between adjacent contacts at the 0.075" pitch — it matches the common midplane power rail voltage in telecom and data-centre equipment.