Molex connectors are standardized electrical connectors widely used in power and signal applications across various industries, including computing, consumer electronics, and automotive systems.

They are known for their durability, ease of use, and reliable connectivity, often featuring plastic housings with metal contacts that enable secure electrical connections.

These connectors originated from Molex Incorporated, a company specializing in electronic interconnect solutions, but the term “Molex” has since become generic, referring to a broad category of similar connectors.

They typically come in various configurations, such as two-pin, three-pin, and four-pin models, with different voltage and current capacities.

In computing, Molex connectors are often found in power supply units (PSUs), where they provide power to legacy hard drives, optical drives, and cooling fans. The most common type is the 4-pin Molex connector, which delivers 12V and 5V power through red, yellow, and black wires.

Molex connectors remain relevant in custom builds, older hardware, and industrial applications.

Beyond computing, Molex connectors play a crucial role in automotive wiring harnesses, LED lighting systems, and even medical equipment, where their robustness ensures stable performance in demanding environments.

With their high-temperature resistance and adaptability to different pin configurations, Molex connectors continue to be a staple in electrical and electronic engineering.

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