The JST 04SUR-32S is a 4-position, single-row receptacle from the SUR series, terminated via IDC (insulation displacement) to 32 AWG discrete wire. Its 0.031" (0.80 mm) pitch makes it one of the densest wire-to-board connectors in JST's SUR family — the tight pitch keeps the board footprint small but also means the wire bundle is tightly packed. The closed-end housing prevents over-insertion of the mating header, and the natural (uncolored) nylon body is typical for general-purpose internal harnesses.
The 0.80 mm pitch (0.031") sets the board layout pitch for the mating header. The IDC termination is fixed for 32 AWG only.