The Molex 0430450823 is the 8-position dual-row member of the Micro-Fit 3.0 43045 series — a shrouded, right-angle through-hole header designed for board-to-wire power interconnects. It carries a 3.00 mm pitch, rated 8 A per circuit at 600 V, with gold-plated mating contacts (30.0 µ" over 0.76 µm) and tin-plated solder posts. The 4-wall shroud and locking ramp secure the mating receptacle; a board lock holds the header during soldering and resists shear from cable strain.
The locking ramp and board lock together mean this connector is meant for applications where vibration or cable pull could unseat a plain friction-lock header — think engine-adjacent harnesses or industrial cabinet wiring.
The crimp terminals for the receptacle side are the 43030 series (20-24 AWG). The solder posts are 0.125" (3.18 mm) long, through-hole only — no SMT option on this variant.