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