Cooler MasterV850 SFX Gold ITX SFF Modular Power Supply, 850W 80Plus Gold, ATX 3.1 | 90° | PCIe 5.1, Designed Ready Nvidia RTX 5080 | AMD RX 9070 XT, Customized Cable, 100mm|3.9", 10-Year

It's well made and it is extremely quiet on low loads but can get a little louder as it ramps up, but 90 % of the time it's very quiet. I love the cables it came with. They where the perfect size for the case I was using so it made cable management a breeze.

Maybe I'm old school but WOW! Tiniest little sfx power supply that can do 850w. This along with the NR200P let me build a beast of a system with no compromises inside a SFF package. Good job Coolermaster.

So, I got this when I wanted to build my very first SFF case, but alas, it never arrived. Amazon made it right but I eventually just ended up buying another one elsewhere. I was sad it didn't come with the 40 series adapter but meh, it was a great sale at the time. It was a little louder than my SF750 Corsair PSU but that was to be expected. Overall, it is a good PSU if you don't need whisper quiet and from what I hear, it's been upgraded so give it a shot, you won't be disappointed (unless maybe you work in a library).

It's a modular power supply with good efficiency, and has good ratings for the power supply purchasing guides I read. No issues on a Ryzen 5 9600x and rx9070 xt. Fits well in an ITX case, haven't noticed any issues with it at all.

Update:The replacement that Im using, now my third which I bought from amazon, is giving random shut downs and reboots. DONT BUY THIS PSU OR BETTER PUT POS!!!!Im not one to write these types of reviews but as a part-time builder/side hustle cooler master has the worst and I mean THE WORST customer support. Ive had 3 of these fail. Luckily amazon took one of them back and the other one failed after 6 months. The third one I just gave up on and bought something else. Im not here to promote another company but when you build a lot of PCs sometimes parts fail. It happens. The measure of a company is how they handle it. Razer takes months to RMA something while the major brands are usually pretty good but cooler master still has my PSU that was 3 months old and died. No one replys to emails, or support tickets, NO ONE picks up the phone, their online chat is also never answered, facebook goes unanswered, twitter etc. Corsair will RMA you part in a few weeks. Silverstone same thing but cooler master doesnt care at all. I will never use their parts even if it free. Even if it's a heatsink. This is no way to treat loyal customers.

I think the cables were wrapped and coiled well. The 24 pin connector wiring was a bit jumbled and crinkled, but fixable. I was having an issue with coil whine, but learned about dirty back-feed on circuit legs. Once I eliminated an appliance that was causing this problem it was great. But why only this psu was having issues when I have at any moment 3 cimputers plugged in? Oh well, so far it works.

Has enough ports for my Mini ITX build. Relatively quiet, even before I undervolted.

Good SFX PSU with two 8 regular pins and a 12V-2x6 port.