Corsair CX750M 750W Modular Power Supply: features and who it suits

The Corsair CX750M is a 750-watt ATX power supply for desktop PCs. It sits in Corsair's CX Series, which the brand aims at basic system builds and upgrades, and it uses modular cabling so you plug in only the cables your build needs. This page explains what its main specs mean for a typical desktop.

What modular cabling changes

In a non-modular power supply, every cable is permanently attached, and the unused ones end up bundled somewhere in the case. On the CX750M, the peripheral cables detach from the unit. Corsair says this lets you connect only the cables you need for your graphics cards and storage devices, leaving the rest in the box. In general, fewer loose cables means a tidier build and easier airflow.

Corsair's table lists one ATX and one EPS connector for the 750-watt model, along with two PCI-E connectors, four 4-pin peripheral connectors, six SATA connectors and one floppy connector.

80 Plus Bronze and efficiency

80 Plus is a certification that tests how much of the power drawn from the wall reaches your components rather than being lost as heat. Bronze is the entry certification level, and Corsair quotes up to 85% efficiency. A more efficient supply typically produces less waste heat, which can let the fan work less hard.

Corsair also cites 0.99 active power factor correction, which it says provides clean and reliable power, and a universal AC input of 90 to 264 volts, so the unit can work across different mains voltages.

Fan and noise

The unit has a 135 mm fan that is thermally controlled. A larger fan can move the same air at a lower speed, which is generally quieter. Corsair says the thermal control keeps the unit quiet at idle and that the large diameter reduces noise under load. Continuous output is rated at a 40°C operating temperature, so keep the case reasonably ventilated.

Single +12V rail

Corsair lists a dedicated single +12V rail. Modern graphics cards and processors draw most of their power from 12 volts, and a single rail means that capacity isn't divided between separate outputs. The brand describes this as offering maximum compatibility with the latest components.

Size and look

The listing gives dimensions of about 5.9 x 6.3 x 3.4 inches and a weight of 6.4 lb. Corsair's table gives the 750-watt unit as 150 x 86 x 160 mm, slightly longer than the lower-wattage CX models at 140 mm. The finish is matte black with black sleeved cables and black connectors.

Warranty and support

Corsair lists a three-year warranty and lifetime access to its technical support and customer service. Check the current terms with the brand.

Who it suits

It suits a standard desktop build or an upgrade that needs a reliable 750-watt supply with tidy cabling. The connector count shows it is aimed at systems with one graphics card rather than multi-GPU setups.

What to check before you buy

• Wattage: add up your components' power draw and confirm 750 W leaves enough headroom.
• Graphics card connectors: check how many PCI-E power connectors your card needs. This unit lists two.
• Case fit: confirm your case takes a standard ATX supply about 160 mm long.
• Storage count: six SATA connectors should cover most builds, but count your drives.
• Cable compatibility: modular cables are generally specific to a brand and series, so use only the cables Corsair supplies for this model.
• Region: the listing is for the North American (NA) version.

The short version

• 750-watt ATX power supply, model CP-9020061-NA, in Corsair's CX Series.
• Modular cabling: connect only the cables you need.
• 80 Plus Bronze certified, up to 85% efficient, 0.99 active PFC.
• 135 mm thermally controlled fan and a single +12V rail.
• Three-year warranty and technical support, per Corsair.

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