So you see, you have enough current for your fans. Dimensions The dimensions and mounting holes must suit the equipment that uses the fan.
Is there and already roughly calculated schema that would do the job? Plus the two molex on the one I recommended means theoretically double power for the fans.
Motherboard (CPU) 3 Pin Fan Connector - They have different fin geometry that allows to have more air flow with less rpm. It amplifies the current of the base by a factor of hfe 1000 in your case leaving the voltage 0.
PC Fan RPM wire install Some improvement can be achieved by eliminating all fans except one in the power supply which also draws hot air out of the case. Leave the yellow unconnected. Common sizes include 40 mm, 60 mm, 80 mm, 92 mm, 120 mm and 140 mm, although 8 mm, 17 mm, 20 mm, 25 mm, 30 mm, 35 mm, 38 mm, 45 mm, 50 mm, 70 mm, 250 mm and 360 mm sizes are also available. Then i will explain some other common fans. I bought this fan and it doesn't work by connecting the yellow and black wire to molex,it should start with 12V even if it is for 24V. I hope you have an answer for me. And the hard way is beyond my skills.... How can I modify 2 pin wire fan to 4 pin wire fan? Your fan may also have a third wire, which carries a signal that tells the computer if your fan is working properly. There will probably be more than one at different positions on the motherboard, so use whichever is closest to the corresponding fan. This solution is used in some external environments such as wireless equipment located in the wild.