Corsair SF1000 ATX 3.1 PCIe 5.0 Platinum Power Supply Review

A Closer Look

I think the most impressive thing about this PSU is the size, as delivering 1000W in an SFX form factor is pretty incredible. Admittedly, Corsair aren’t holding an exclusive on this output and form factor, why only recently we reviewed one from Thermaltake. However, that doesn’t change how technically impressive it is to get 1000W in a power supply you can hold in one hand.

Interestingly, I have the SF750W at my disposal today too, and as you can see, that’s the same size as the 1000W. SFX PSUs are fantastic for SFF and mini-ITX PC builds, but at 1000W, you can still cram in any flagship GPU and CPU combo with absolutely no compromise on power delivery and performance.

The PSU is equipped with a 92mm PWM fan, which has ample ventilation on the top.

There’s a good amount of ventilation at the back too, allowing heat to easy be exhausted from the PSU. However, at Platinum efficiency, it’s unlikely this PSU will generate much heat anyway. There’s also a master power switch and the AC line-in here too.

As you can see, the PSU is fully modular, and that’s true of both the 750W and the 850W models too. There’s a native 12VHPWR connector too, allowing for a single PSU cable connection to the latest graphics cards such as the RTX 40-series.

Overall, the outward design is clean and tidy, but still has the same design DNA we’ve seen across countless Corsair PSUs, cases, coolers and other products in recent years, so it’s sure to look great along side other Corsair products in your build.