Astrotek Internal Power Molex Cable 20cm - 4 pins to 8 pins ATX EPS 12V Motherboard Power Supply Adapter Converter The ASTROTEK molex 4 pin to 8 pin EPS12V connector adapter is designed for users with a motherboard that requires an 8-pin EPS12V connection but a power supply that doesn't have it. By using a molex to 8-pin adapter you can convert a standard 4pin plug coming off your power supply into the 8-pin EPS 12V power you need to get up and running. • Inputs: 1 X 4-Pin Power Connectors • Outputs: 1 X 8-Pin EPS12V Power Connector • Better for internal and external use.