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Windows 7: Is it possible to use a usb cord with a 12v case fan?

26 Feb 2013   #1
Advice Pro

Is it possible to use a usb cord with a 12v case fan?

I want to connect a 12v 3 / 4 pin case fan with a usb cord. I know that it's possible with lower voltage.

Here's an adapter for 4-pin to usb:

Attached Thumbnails
Is it possible to use a usb cord with a 12v case fan?-710mnra9rsl._sl1500_.jpg  
My System SpecsSystem Spec
26 Feb 2013   #2

WinXP / Win 7 / Win 8.1 64bit Dual Boot

You only get 5 volts from USB Header. What plug do you have on the fan?
My System SpecsSystem Spec
26 Feb 2013   #3
Lady Fitzgerald

Win 7 Ultimate 64 bit

5v is iffy for running fans. Many, if not most, need at least 7v to run.
My System SpecsSystem Spec

27 Feb 2013   #4

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10

Well even if it did run on 5v the question is then what sort of current are you going to be pulling with any particular fan? But as Lady says fairly slim chance of it running on 5v and even 7v.
My System SpecsSystem Spec

 Is it possible to use a usb cord with a 12v case fan?

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