20-Pin 4.2mm (0.165in.) pitch polarised power connectors, as used on ATX motherboards. Both the male and female connectors are line versions, designed for attaching to cables, comprising of a housing and 20 crimp/solder terminals. The female connector has a latching mechanism and is the connector that is commonly found on PC computer PSUs. The housings are made from Nylon 66, to UL94V-2.