ITEM NAME:2X 4-Pin Molex/IDE to 3-Pin CPU/Case Fan Power Connector Cable Adapter 20cm OS.This cable is used for connecting a Regular Molex IDE power connector to power a CPU / Chassis / Case Fan with 3 / 4pins Molex connector. Wire length: Approx. 2 x Connector Cables. I am sure it the right thing you need now.