The new 24 pin connector added one line apiece for ground 3 3 5 and 12 volts.
Molex power supply connector pinout.
Molex connector is the vernacular term for a two piece pin and socket interconnection.
The 24 pin main power connector was added in atx12v 2 0 to provide extra power needed by pci express slots.
To meet these needs mini fit jr mini fit plus mini fit blind mate interface bmi and mini fit tpa2 connectors offer polarized housings with isolated terminals positive locks and low engagement forces.
The connector itself is a molex 39 01 2240 connector often called a molex mini fit jr.
The older 20 pin main power cable only has one 12 volt line.
Atx 24 pin 12v power connector pinout atx v2 2 below is the complete pinout table for the standard atx 24 pin 12v power supply connector as of version 2 2 of the atx specification pdf.
1 x 20 pin connector at the power supply cable.
A wide range of oems require high current high density power connectors that also support design flexibility.
The sata standard specifies a power connector sharply differing from those used by pata drives and many other computer components.
It is wafer based 15 pin shape.
Pioneered by molex connector company the two piece design became an early electronic standard.
Replaced by v 2 x with 24 pin connector.
Below is the pinout for the standard molex 4 pin peripheral power connector as of version 2 2 of the atx specification pdf.
This means with the old 20 pin style you can t get more than 18a from 3 3v and 24a from 5v.
Pinout of atx power supply connector and layout of 20 pin molex 39 29 9202 connector and 20 pin molex 39 01 2200 connectorv 1 x with 20 pin connector was widely used at pc motherboard.
Molex 67581 0000 used for cable connector and molex 67582 0000 used for terminals connector.
This connector from the atx power supply can only be fitted in one way.
That s why in early 2000 s some motherboards with 3 3v 18a and 5v 24a mainly dual cpu amd systems used an auxiliary 6 pin power cable.
First used in home appliances other industries soon began designing it into their products from.
Atx power connector on the motherboard consists of two rows of 10 pins.
Wikimedia commons if you re using this pinout table to test power supply voltages be aware that the voltages must be within atx specified tolerances.
Atx 24 pin main power cable connector.
People often use the term 4 pin molex power cable or 4 pin molex to refer to a four pin peripheral power cable.
The rated current of the main molex connector is 6a per contact.
When you re plugging in multiple high powered devices it s a good idea to spread the load between all of your cables.
