Molex connector is the vernacular term for a two piece pin and socket interconnection. 4 pin atx connector work on the 8 pin atx motherboard.

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Molex to 6 pin pcie wiring diagram. These high power cards draw most of their power from the 12 volt rail so this cable provides only 12 volts. Cable matters 2 pack 6 pin pcie to molex power cable 2 molex to 6 pin pcie 15cm. Please obtain the correct wiring. Molex minifit pcie mini fit plus hcs mini fit plus. First used in home appliances other industries soon began designing it into their products from. Some video cards come with the 8 pin pci express power connector to support higher wattage than the 6 pin pci express connectors.
The connectors allowed easy removal for later changes or maintenance. Its designed to work that way but will be limited to the lower wattage provided by the 6 pin version of the cable. This connector is used to provide extra 12 volt power to pci express expansion cards. I received a brand new package setof 2 male and 2 female 093 6 pin molex brand connectors with 15 male and 15 female pins just what i needed. 6 pin power connector can supply 75 watt to the graphics card while 8 pin power connector can deliver maximum of 150w to your graphics card. Molex developed and patented the first examples of this connector style in the late 1950s and early 1960s.
I tried to follow the second picture and look at the third picture. Many video cards draw significantly more than 75 watts provided by the motherboard slot so the 6 pin pci express power cable was created. Graphics card 6 pin and 8 pin connectors explained. Its okay to plug a 6 pin pci express power cable into an 8 pin pci express connector. I used these to add a second set of led taillight to my box van. Pioneered by molex connector company the two piece design became an early electronic standard.
41 out of 5 stars 24. Molexs diverse selection of power connectors offers current ratings up to 115 amps per circuit. In this video i show you how you can connect a pcie graphics card such as the gtx 660 2gb gpu without having a 6 pin power cable to provide external power. Buy adapters or power converter cables for 6 pin pci e and 8 pin pci e connectors. However in the diagramblueprint it seems that the connector p2 doesnt have anything connected on pin 2 only 13456. A vast selection of power connectors that can be modified or customized to meet virtually any application requirement.
A graphics card with one 8 pin power connector can get maximum of 225w of power 75w from pci express x16 slot and 150w. The cable i have does have 6 cables 3 black 3 yellow.