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 three wire fan connecting to a four pin fan header. Fans and on board fan headers are backwards compatible. The main difference is going to be the 4th pin known as the control pin.

Proper fan connector placement is shown in the figures below. Shielded fan molex connector pins male 0 09. It is a small thick rectangular in line female connector with two polarizing tabs on the outer most edge of one long side. Fan has a 3 pin power connector.

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

This is still considered a 3 pin fan. A pwm capable fan is usually connected to a 4 pin connector pinout. 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. Moddiy male 3 pin fan extension connector molex 2510 with pins.

Moddiy female 3 pin fan connector molex 2510 with pins. Connectors usually used for computer fans are the following. The three wire connectors are for small chassis fans with lower power consumption. 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.

Pulse width modulation pwm is a common method of controlling computer fans. Identifying fan type 3 pin or 4 pin pwm. Desktop board has a 4 pin fan header. Three pin molex connector kk family this molex connector is used when connecting a fan to the motherboard or other circuit board.

There is no fan control.