Corsair SF750 (2024)
Bottom Line
The correct PSU specifically for a small form factor build, and not worth the size premium for anything else. If your case is standard ATX or mid-tower, the RM850x or Focus GX-750 above deliver the same performance for less money.
Pros & Cons
✅ Pros
- 750W Platinum efficiency in roughly half the volume of an ATX PSU
- SFX-to-ATX bracket included: mounts in a full-size case too if needed later
- Zero RPM fan mode for silent idle/low-load operation
- Fully modular despite the compact size
❌ Cons
- Premium over an equivalent-wattage ATX unit for the smaller form factor
- 750W ceiling limits it to single mid-to-high-end GPU builds, not dual-GPU
- Smaller fan runs faster (and audibly) under sustained high load than a larger ATX fan would
Best For
- Small form factor (ITX) gaming builds that still want a real desktop-class GPU
- Anyone building a compact homelab node where a standard ATX PSU physically won't fit
- Not worth the premium if you're building a standard ATX case: get the ATX Seasonic or Corsair above instead
Performance & Real-World Usage
Specifications
SFX (Small Form Factor) PSUs trade some cost premium and a slightly smaller, faster-spinning fan for a footprint that fits cases a standard ATX PSU physically cannot.
Only worth it for the case that needs it
There’s no performance reason to choose SFX over ATX in a standard mid-tower or full-tower case: the ATX Seasonic Focus GX-750 above delivers the same 750W at the same Platinum-class efficiency for less money, in a case with room to spare either way. This unit’s entire value proposition is fitting a build that genuinely needs the smaller footprint, most commonly an ITX case built for a desk or a tight homelab shelf.
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