Converting 3pin fan to USB Tags: Fan USB Components Last response: April 10, 2010 2:37 AM in Components Share tarshm April 10, 2010 2:12:35 AM Im bored and want to convert a few old 3pin 2.5inch fans to usb to cool my laptop the fan has 3 cables (red white and black) anyone have an idea of how to hook this up to a usb More about : converting 3pin fan usb saaiello April 10, 2010 2:26:10 AM I think you need different fans to run off of USB since USB only has 5 volts comeing out if thats enough to get them spinning it wont spin very fast. Just use the black and red wires you dont need the white wire. Red to +5volt black to ground. m 0 l tarshm April 10, 2010 2:37:44 AM cheers mate, ill give it ago if anything ill gain a bit more knowledge in electronics m 0 l Can't find your answer ? Ask ! Publish Related resources PCI-e USB3.0 add-on card & 3-pin fan cable? Forum I converted my Antec 900 fans from Molex to 3-pin Forum SolvedQuestion regarding 3pin and 4pin system fan settings Forum SolvedIs it okay to plug in a 3-pin case fan plug into a 4-pin socket on my mobo? Forum SolvedMotherboard only have 1 (3-pin) case fan connector Forum SolvedFan uses 3-pin, MoBo takes 4-pin fans? Forum SolvedSwifttech mcp655 modified for pwm (by frozen CPU) with a 3-pin fan controller? Forum SolvedMOD - Possible to re-wire fans from Molex to 3-Pin Fan? Forum SolvedCpu fan At 100% 3pin to 4pin Forum SolvedWill my 3-pin fans work on 4-pin fan connectors? Forum Solved2x 3-pin fans in 1 system fan header? Forum SolvedCan i manually control the speed of my two 3-pin case fans if they are plugged in 4-pin slot? New to pc's - Pls help! :) Forum Solved3-pin fan connectors Motherboard got 1 chassis fan connector 3 pin Forum SolvedIs it safe to run 3 fans of BitFenix Alchemy 3pin x3 Fan adaptor Forum Solved3pin fan into 4pin mobo connector Forum SolvedLooking for 3pin fan cable Forum SolvedUse a 2-pin ATX fan on a 3-pin mobo PWM controller? Forum Solved3-pin fan contolable Forum SolvedWindforce fan with 4pin into a 3pin socket Forum SolvedLower voltage of 3-pin fan Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !