HDE 4-Pin Molex to 3-Pin ATX Replacement PC Computer Power Fan Cable Both male and female ends have 4 pins 1 - 3-pin ATX connects to fan Length of the cable is 13.5 inches; Size: 13.5 in (34.5 cm) Great for replacing the current connector used to hook up your fan Use as a spare or tester in case your current adapter fails or breaks