Need help re-wiring fans

[wp442]

I'm finishing up the build of my new rig, which consists of a Sabertooth P67 motherboard, which has provisions for a mobo-mounted 50mm assist fan. Since I'm installing all LED fans in my case, I was wanting to find a matching 50mm LED assist fan to use, but I had no luck finding one. However, I did run across something that might work.

I got this laptop cooler with two 50mm LED fans:



Considering it was only $9, I figured I'd give it a try and see if I could make the fans work. The laptop cooler arrived in the mail today, and here are a few pics I took (click to enlarge):



(First of all....PINK??? LOL) Anyway, as you can see, the fans are a two-wire version, whereas the motherboard port for this assist fan is a 3-pin, so that it can be monitored and regulated. I realize that hooking it up as a two-wire means it'll be running full blast at all times and I won't be able to monitor it's RPM, but I'm fine with that, as these fans are pretty quiet. So...the question is, can I simply snip the USB connection off the fans on this cooler and wire in a three-pin connector (where one pin socket would be unused)? These fans each have a red and a white wire, whereas the assist fan I'm currently using has red, yellow and black. So which two wires from the three-pin mobo connector do I connect to which wires on this fan?

Thanks for the help!

[flanzig1]

Since the laptop cooler connects by USB, the fans should be 5V fans. Fan headrs on motherboards are 12v. What you would need to do is splice the fans on to a 4 pin molex and plug into the PSU. The 5v volt leads on a molex are pins 3 and 4, 3 is common and 4 is +v