SF1000 (2024) Small ATX 3.1 PCIe 5.1 1000W Power Supply – Black | Low-Noise, Fully Modular, 80 PLUS Platinum, Zero RPM Mode, SFX-to-ATX Bracket Included, NA

I chose the CORSAIR SF1000 (2024) for my small form factor build, and it has been an outstanding purchase. The build quality is exactly what you’d expect from Corsair—excellent. It’s compact, incredibly well-built, fully modular, and operates very quietly, even under demanding workloads. Cable management is also much easier thanks to the incredibly flexible modular cables, which are some of the best included cables I’ve ever used. For compact cases like the A4-H2O, their flexibility makes routing and managing cables significantly easier, helping achieve a clean build without putting unnecessary stress on connectors or components. For a high-end system, especially in a small case where airflow and reliability are critical, I simply trust Corsair more than any other brand. The power supply is one of the few components where I never want to compromise, and knowing my hardware is powered by a unit with such a strong reputation gives me real peace of mind. When you’re investing in expensive components, that level of confidence is worth every penny. If you’re building in the A4-H2O or any other premium SFF case, this power supply is an easy recommendation. It combines exceptional build quality, whisper-quiet operation, excellent efficiency, outstanding flexible cables that are ideal for SFF builds, and the long-standing reliability Corsair is known for. It’s exactly the kind of PSU you can install once and trust for years to come.

The Corsair SF1000 (2024) SFX Power Supply shipped incredibly fast and showed up the next day with Prime, which is always a great start. Right out of the box, Corsair’s attention to detail is obvious - excellent packaging and a premium feel throughout. Installation was straightforward, especially with the included SFX-to-ATX bracket, and it fit my L300 case perfectly. Compatibility was spot-on for a compact build, though it’s still smart to double-check cable lengths depending on your setup. Speaking of cables, there are plenty included, they’re nicely sleeved, and they make cable management clean and efficient. Performance-wise, this PSU delivers serious power with rock-solid stability. The 80 Plus Platinum efficiency and 105°C-rated Japanese capacitors translate into excellent reliability, even under heavy loads. The low noise level is another big win - the 92mm PWM fan stays quiet while keeping everything cool. Cybernetics rating this as one of the best SFX PSUs of all time definitely shows here. That said, I’d recommend waiting for deals around the $180 mark with coupons - t’s an absolute no-brainer at that price. Overall, this is a top-tier SFX unit that nails power delivery, reliability, cable management, and ease of installation in a compact form factor.

Fit great in my mini itx build, it powers my 5070 ti oc and ryzen 7 9800X3D quietly and cable management was great, I love the modularity of the cables and they all click into place nice and tight. It's small but extremely powerful and lives up to the hype. 5/5

This is the best SFX power supply, and one of the best power supplies overall. I’ve used a few others (EVGA, Lian Li, Corsair) in PCs for other people, and this has been my fav. I love the way it looks. Premium fit and finish. Makes low heat and zero noise. The individually sleeved cables are wonderful and they make cable management a breeze for SFF. I got this for $160 during Amazon Prime week 2026. It replaced an SF850 (shown side-by-side in pic) which I bought for $200 back when they released. Easily worth it for me. I didn’t need to upgrade, and it’s more than I’ll ever need, but I’m going to keep it forever. I noticed Corsair started using a black fan in the SF power supplies, which completes the black aesthetic. But, other than that and the extra PCIe power connector, it’s the same as my SF850.

Produced arrived used, I selected new. Also was missing ATX bracket and PSU cables were too short to connect.

Handles my ryzen 5 5500 and 9060 xt 16gb great, quality is good, cables aren't too stiff, good for itx build. Noise is excellent I don't think I've ever even noticed fans turning on, and for the price I got it at ($169) I have zero complaints. Not sure if it's worth full price for such a mid range build but for me it's perfect.

This power supply is great for small builds and has everything you need the only problem I had was that the Pcie cables were too short so I had to improvise at making them fit, I also liked the addition of zip ties and cable straps. But it is a little pricey

I have it powering my 9800X3D and 4070ti Super combo. Probably couldve gone with a 850W, but for future proof upgrades, I went with the 1000W. It of course powers these components beautifully, the internal fan had never even turned on. It’s dead silent. I use it inside my Lian Li A3 case, and the cables are the perfect length! It helps with the organization and management of all that, especially if you have built inside an A3, you know the challenges lol, I love this psu, looks cool too.

Excelente fonte. Está segurando uma RTX 5090 Astral OC e um Ryzen 9800X3D tranquilo.

La fuente es super silenciosa, solo cuidado los cables son muy cortos

Dead silent, cables are a bit tight in my Lian Li a3 but it works perfectly. Bought a Lian Li SFX power supply first, coil whine was unbearable. Save yourself a headache and just buy corsair.

The best

No significant complaints except the cables can be slightly too short depending on which case you are using. They do list the lengths on their site so I would highly recommend checking it prior to ordering as getting other cables is quite costly.