Please note this 4-Pin Molex is actual 2-Pin but it still works fine on your computer, because only 2-pin in connector required for fixed Molex operated voltage of 12V.Molex to 4 pin fan adapter supports 3Pin or 4Pin PC cooling fans.Powers up to four PC chassis fans via molex connectors to provide internal chassis cooling.Cable length is 27cm / 10.6 inch, quality high density black sleeving for all black appearance.Connector A: 4 pin molex connector (actual 2 pin) B: 3pcs 4 pin fan connector(actual 2 pin)