4-pin Molex connectors have become the standard in computer construction. In this regard, they are currently the most common type of power connection for computers with ATX power supplies. The four-pin connector is a standard introduced by the world-famous Molex company and although you can also find connectors from many other manufacturers, the classic 4-pin connector will be most often associated with the Molex brand. It is a company that manufactures and develops new cables, plugs and electronic connectors.
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ProtoPi module - extension of Raspberry Pi to contact plate + tape
Index: MOD-01743
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Connectors - 4-pin
Products: 11
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Pin for socket 2,00mm - 10pcs.
A set of ten female pins slot's case, pitch of 2.00 mm.
Index: KAB-08573
Index: KAB-08573
Slot for 4-pin cable, pitch of 2.00 mm. Set includes 5 slots of 4x1.
Index: KAB-08572
Index: KAB-08572
Male pin for case raster 5,08mm 10pcs
A set of ten male pins for the slot's case, pitch of 5,08 mm.
Index: KAB-03917
Index: KAB-03917
Qwiic JST Connector 4-Pin - SMD - vertical - SparkFun PRT-16766
Four-pin JST connector used in SparkFun Qwiic sensors and cables. The socket is intended for self-soldering. Enables vertical insertion of a cable equipped with a Qwiic...
Index: SPF-21291
Index: SPF-21291
DIY Magnetic Connector - Right Angle Three Contact Pins - Adafruit 5358
Magnetic connectors allow for simple and quick connection of two modules. They were made by Adafruit like MagSafe, a similar solution can be found in MacBooks and the littleBits...
Index: ADA-21438
Index: ADA-21438
Molex power cord - 2x SATA - 15cm
The adapter allows for the separation of the MOLEX connector to two SATA connectors. Cable length is 15 cm.
Index: KAB-04638
Index: KAB-04638
Male plug case for 4-pin 5,08mm - 10 pcs.
Male plug's case for the 4-pin cable with the pitch of 5,08 mm. Case dimensions: 25,3 x 22,5 x 8,5 mm. 10 pcs.
Index: KAB-03914
Index: KAB-03914
Molex power cable to 2x Molex - 15cm
The adapter allows you to split the MOLEX connector into two separate MOLEX connectors.
Index: KAB-04637
Index: KAB-04637
Adapter SATA - Molex. It provides additional Molex connector from the SATA connector. Cable length 15 cm
Index: KAB-04636
Index: KAB-04636
Molex power cord for mini-Molex + Molex - 15cm
Power cable with Molex connectors, 5.08 mm pitch and mini-Molex, 2.54 mm pitch + Molex, 5.08 mm pitch. The cable length is 15 cm.
Index: KAB-04639
Index: KAB-04639
4-pin angled printing plug, raster 5,08mm
Plug for the print, angled, 4-pin, pitch of 5.08 mm. Plug dimensions: 23.5 x 12.4 x 8.5 mm
Index: KAB-03921
Index: KAB-03921
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See also
- Connectors - goldpin
- Pogo Pin
- Electric cubes
- Quick couplings
- DC plugs and sockets
- BNC connectors
- BLS connectors
- ARK connectors
- D-SUB connectors
- Connectors - FSF / FPC ZIF
- Amphenol FCI connectors
- Banana connectors
- Crocodile cables
- RJ network connectors
- USB connectors
- Jumpers
- Wire tips
- SMA connectors
- Mounting connectors
- Connectors - raster 2.5 mm
- Connectors - raster 2.54 mm
- 230 V network sockets
- IDC connectors
- Slip connectors
- Molex connectors
- Connectors
More power! - Molex connector
The appropriate thickness of the connector contacts allows for the transfer of currents of the order of 7A , which is sufficient for many devices we build. The Molex connector does not allow the plug to be connected in reverse.
In this way, the product protects against short circuits (e.g. motherboard) and reverse polarity of the supply voltage. This is crucial for systems not equipped with appropriate protection.
Reversing the polarity of the supply voltage usually has disastrous consequences for electronic systems, and in extreme cases it may lead to damage to the power supply, overheating of the cables, or even to fire. Computers are particularly susceptible to polarity change, i.e. reverse polarity.
Practical considerations for using Molex connectors
The pin pitch of connectors intended for installation on printed circuit boards is 5.08 mm , which significantly facilitates their use in new projects.
An important advantage of Molex 4 pin connectors is compatibility with ATX computer power supply cable harnesses, so we can use these efficient and popular power supplies in our own projects without having to recover connectors from old devices.
We can choose from both an angular and a straight version, which makes it very easy to adjust the operating direction of the connector to the dimensional conditions of our device's housing (e.g. connecting the motherboard).
4-pin Molex connectors
When designing a printed circuit board, remember to use mounting holes of appropriate diameters.
Detailed information on this subject can be found in the technical documentation available on our website.
Molex connectors for mounting on cables consist of a plastic housing and contacts that must be crimped onto stripped cable ends. A properly made connection is durable and reliable.
When choosing a product (pins), pay attention to their type - the plug works with male pins, and the socket - with female pins. Additionally, in the connectors category you can find, among others: pin sockets , ARK connectors , electrical cubes , BNC connectors , DC sockets and plugs , BLS connectors and many others.
If you have any questions about connectors, adapters or other products available in our store, please contact us by e-mail, telephone or via the contact form available on the website. Experienced advisors will be happy to help you choose a connector, device or accessory tailored to specific applications and user requirements. Contact Mon-Fri during company opening hours.
4-pin Molex connectors - FAQ
4-pin Molex connectors (named after the company that produces them) are commonly used when building desktop computers. Molex connectors constitute a power connection directly to the ATX, i.e. computer power supply. They are distinguished by high strength and durability. In addition, Molex connectors are characterized by excellent electrical parameters and a simple and reliable design.
The 4-pin plug is fully compatible with the cable harnesses of ATX power supplies, i.e. power supplies used in desktop computers. In practice, this means that efficient ATX power supplies using a 4-pin connector can be used for your own projects. Depending on your needs, you can choose a straight or angular connector, allowing for individual positioning, e.g. to the housing is no problem.