It features all-in-one extension and conversion. ATX12V 4 Pin Extension, EPS12V 8 Pin Extension, EPS12V 8Pin to ATX12V 4 Pin conversion. ATX12V 4 Pin to EPS12V 8Pin conversion. One cable does all the work. Features: Side 1: 1 X ATX 12V P4 4 pin female Side 2: 1 X ATX 12V 8 pin male Cable Length: 8-inch/20CM Package Included: 2 x 4-Pin female to 8-Pin male 8inch Motherboard CPU Power Adapter Cable