What is the standard voltage for ATX power supply connectors?

The standard voltage for ATX power supply connectors is 12V. This voltage is critical for powering various components within a computer, such as the motherboard, graphics card, and storage devices. The 12V rail provides adequate power needed for devices that require significant energy, like CPUs and GPUs, which tend to draw more current compared to other components.

Other voltages supplied by an ATX power supply include 3.3V and 5V, which are also important for different components, such as RAM and peripheral devices, but the most substantial load typically relies on the 12V supply. The availability of different voltage levels allows the power supply to cater to the diverse needs of all internal components, but the primary supply that plays a crucial role in overall performance and system stability is the 12V output.