CORSAIR SF750 (2024) SFX Power Supply: features, specs and who it suits

The CORSAIR SF750 (2024) is a 750W power supply built in the compact SFX size. It is aimed at small-form-factor PCs, where space is tight and every component has to be dense, though an included bracket lets it fit larger cases too. It is fully modular, rated 80 PLUS Platinum and designed around the ATX 3.1 standard.

What SFX size means

Standard desktop power supplies use the ATX form factor. SFX units are smaller, so they fit compact cases that have no room for a full-size unit. The SF750 measures about 4.9 x 3.9 x 2.5 inches and weighs roughly 2.1 lb (1 kg). CORSAIR includes an SFX-to-ATX bracket, which lets you mount it in a regular ATX case as well, a useful option if you move to a bigger build later.

80 PLUS Platinum efficiency

The 80 PLUS programme certifies how efficiently a power supply converts mains power to the DC power your components use. Platinum is one of the higher tiers, meaning less energy is wasted as heat at typical loads. CORSAIR describes it as massive Platinum-rated power in a compact form. Less waste heat typically means the fan has less work to do.

ATX 3.1 and PCIe 5.1

The listing states the unit is compliant with Intel's ATX 3.1 standard and ready for the PCIe 5.1 platform. In general, newer graphics cards can produce brief power spikes well above their average draw, and these standards tighten how a power supply should handle them. CORSAIR says the SF750 is built to resist those transient spikes. Check the graphics card's power connector and the cables you'll need before you build.

Fully modular cabling

All cables are detachable, so you connect only what the build needs. CORSAIR lists Type-5 Micro-Fit connectors on the power supply side and flexible cabling that takes up less space. In a small case, fewer cables means better airflow and an easier build.

Cooling and noise

A 92mm PWM fan with a fluid dynamic bearing handles cooling. CORSAIR says it delivers low-noise operation, and the description adds a Zero RPM mode, so the fan stays off at low loads. The capacitors are described as 105°C-rated Japanese capacitors, which the brand links to reliable power under stress. CORSAIR backs the unit with a seven-year warranty, according to the description.

Who it suits

It suits builders of compact gaming or workstation PCs who need 750W in a small case, and anyone who wants a high-efficiency SFX unit that can also be adapted to an ATX case. 750W is a sensible level for many mid-range systems, but your own parts decide the number you need.

What to check before you buy

• Case support: confirm your case takes SFX, or use the included bracket for ATX.
• Wattage: add up the power needs of your processor and graphics card, with some headroom.
• Connectors: check that the cables match your graphics card and motherboard.
• Cable length: compact cases and cables can limit the routing, so check lengths against your layout.
• Clearance: allow space behind the power supply for the plugs and cables.

The short version

• A 750W fully modular SFX power supply with an SFX-to-ATX bracket.
• 80 PLUS Platinum rated, ATX 3.1 compliant and PCIe 5.1 ready.
• 92mm PWM fan with a fluid dynamic bearing and a Zero RPM mode.
• 105°C-rated Japanese capacitors and a seven-year warranty, as the brand describes.

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