The Molex 0430450408 is a 4-circuit, dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-wire power interconnects.
The 3.00 mm pitch and 0.118" row spacing define the PCB footprint — each pair of pins occupies a 3.00 mm grid, which gives enough room for routing a single trace between pads on a standard 1 oz copper layer. The 8 A per-circuit rating is per the spec at ambient, but the real current limit depends on how many circuits are loaded simultaneously and the operating temperature.
This is a surface-mount header with solder tails on the post side finished in 100.0 µin tin. The Tape & Reel packaging (also available in Cut Tape) feeds directly into a pick-and-place line.