Quote Originally Posted by MegaOctane12
The computer fan has a red and black wire, probally a yellow, this one controls the speed on the comp. You don't need to worry about it. Cut the red and black wires and connect the red wire to the stripped black adpater wire and connect the black fan wire to the black adapter wire. Depeding on the adapter you bought (if its a good one) you can have a shit load of fans with the one adapter without compromising the speed.

To do that it needs to be in parallel.

I took electronics and engineering at school.