Pc Fan Connector Types

Please note some fans may have a 4 pin connector but only 3 wires going into the back of the connector.

Pc fan connector types.

Three wire and four wire fan connectors. A pwm capable fan is usually connected to a 4 pin connector pinout. The fan headers have 3 to 4 pins. Connectors usually used for computer fans are the following.

Moddiy male 3 pin fan extension connector molex 2510 with pins. Desktop board has a 4 pin fan header. It is a small thick rectangular in line female connector with two polarizing tabs on the outer most edge of one long side. The main difference is going to be the 4th pin known as the control pin.

Identifying fan type 3 pin or 4 pin pwm. The common pins are the ground pin the power pin and the sense pin. There is no fan control. Bearing type is often a specification that is neglected when purchasing fans and while sleeve bearings are certainly the most affordable a few extra dollars well worth it in this comparison.

Fans and on board fan headers are backwards compatible. Moddiy female 3 pin fan connector molex 2510 with pins. 2pcs 4 pin pwm fan extension cable and 4 pin ide to 3x 4 pin fan connector sleeved braided y splitter for computer pc 4 pin fan extension power cable cooling fans cable. When using a 3 pin power connector with a 4 pin fan header the fan will always be on.

Fan has a 3 pin power connector. Pulse width modulation pwm is a common method of controlling computer fans. Proper fan connector placement is shown in the figures below. Shielded fan molex connector pins male 0 09.

Chassis and processor fans use either a three wire or four wire connector. The three wire connectors are for small chassis fans with lower power consumption. Ground 12 v sense control. A 4 pin pwm fan connector will have four square holes on the front and four wires entering the back.

A three wire fan connecting to a four pin fan header.