Mar 16, 2024 · Mainly there are two versions of ATX power supply connectors: 24-pin and 20-pin connectors. To supply the additional power required by PCI Express slots, the 24-pin main power connector was added to ATX12V 2.0.

You can plug a 20 pin ATX power cable into a motherboard with a 24 pin ATX connector [...] The 24 pin motherboard connector is actually just the 20 pin connector with 4 extra pins added on the end. The original 20 pins were unchanged.

Standard Legacy 20-pin ATX Power Supply to 24-pin Motherboard Power Adapter Cable

Pinouts for ATX-compliant computer power supply: 20 and 24-pin main connectors, 12V, SATA, PCI, floppy drive and other. Provides diagrams, wire colors and part numbers.

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Jun 6, 2022 · Current version of ATX12V 2.x power supply provides two connectors for the motherboard: a 4-pin auxiliary connector providing additional power to the CPU, and a main 24-pin ATX 2 power supply connector, an extension of the original 20-pin version.

Feb 1, 2022 · ATX power supply pinout, Connector configurations for ITX and ATX power supplies, both 20 and 24 pin motherboard connectors.

Aug 3, 2023 · If you look closely, you will find that one of the pins (pin number 20) is missing from your ATX power connector. This is actually the “No connection” pin. However, there used to be a -5V DC pin instead of the NC ones in the old school connectors.

The ATX 20 connector pinout is a specific configuration of the pins on the connector, determining the input and output connections and their respective functions. It is vital to understand the pinout to ensure the correct installation and operation of the ATX 20 connector.

Detailed Pinout Guide for ATX Power. In this section, we will delve into the intricacies of the connections and configurations for the main connectors found in modern computer units.