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Home > Cables & Connectors > Internal Cables > 4 Pin Molex Power Extension Cable
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Molex connectors are 4 pin connectors. They are the most common cable type for powering up hard disk drives, and optical storage drives. They are the only type of power connector available for IDE devices.

 
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Ultra ATA (44 Pin)
Ultra ATA (44 Pin)

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Ultra ATA (50 Pin)
Small Computer Systems Interface
SCSI



Serial Advanced Technology Attachment
Serial ATA



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Novell Procomp External SCSI


Paravision SX-1 External IDE

 
Introduction
This illustration shows what a typical Serial Advanced Technology Attachment cable looks like.
Connectors-Illustrated
Connectors-Illustrated

Molex originated a large variety of connector types, but only one is commonly used in microcomputers, and thus known unambiguously as a "Molex connector" in that context. An AT or ATX standard power supply normally has multiple connectors of this type.

The four pin peripheral power cable dates back to the original PC. It was used for floppy drives and hard disks. It's still around and is now also used for all kinds of things including add-on fans, extra video card power, supplemental motherboard power, and case lighting. It's as old as the hills but is still very widely used. The connector is shaped so that it only fits in one way. You don't have to worry about inserting it the wrong way. People often use the term "4 pin Molex power cable" or "4 pin Molex" to refer to a four pin peripheral power cable. It's not a technically useful term because the 4 pin 12 volt cable is also a 4 pin Molex cable (Molex makes lots of connectors) but "4 pin Molex" is commonly used to refer to peripheral cables anyway.

 
Specifications:
Creation Year: 2001
Superseded By: Parallel ATA (PATA)
Cable Capacities: 1.5, 3.0, 6.0 Gbit/s
Data Width: 16 bits Bandwidth
Maximum Devices Supported: 2 (master/slave)
Protocols Used: Protocol Parallel
Cable Style: Serial
Hotplugging Support? Yes
External Interfaces: Yes (eSATA)
Supported Devices: a
Explanations Of Connectors:
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1
40 pin male connector
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2
40 pin male connector
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3
40 pin male connector
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4
40 pin male connector
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5
40 pin male connector
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6
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7
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Typical Lengths:
a
 
Advantages and Disadvantages:
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Cable Features:
Feature1 Feature2 Feature3 Feature4
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Installation Guides
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Troubleshooting Guides
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