S4028-6K (5 Pack)

I have bought multiple packs of the 6K and used them all over. Imo I would say the difference in noise between these and a Noctua is fairly neglible so don't believe those that say these are insanely loud. I may be biased because I am replacing MUCH louder fans in old server equipment so anything quieter is a blessing, however I have tested the Noctua and the 6K version side by side in a quiet computer room of mine and even being next to them on full blast these were barely audible. I hooked them up to a bench top power supply giving 12V DC so there was no confusion of if they were each on full blast or if the noise was being muddied by other fans. I think the Noctua is a better pick if you absolutely value complete silence above all and you intend to use these in a computer that you have tuned to full blast. Otherwise with PWM I would pick these 100% of the time - they're much cheaper AND they move MUCH more air than the Noctuas, which is another great benefit in old server components -- I need the airflow. Ultimately these are a great buy and I would definitely recommend them!

Original fans on the Ubiquiti US-48-500W had a lot of coil whine. Switched them out for these. Coil whine gone and probably cooler with the top on whenever I cut some of the back out to fit the aftermarket PSUs since the original PSU was dead when I got it. Took all of 5 minutes to switch it out.

I ordered a 5 pack. Upon installation, I discovered that 2 of 5 were dead on arrival. Combing through reviews, I'm not the only one experiencing DOA or quickly non-functional fans....

I got the Jonsbo TK-1 v2 case, but there weren't a lot of rooms for larger 120-140 fans. BUT THESE BAD BOYS CAME IN CLUTCH. There's some ventilation space on the left side of the case that I suspected these could fit in, AND THEY DID! Helped reduced my temp by quite a lot, I can feel them pumping out air as I ramp up performance and they do AN AMAZING job. The YouTube videos on them were rare albeit high quality and that's why I decided to stick with them instead of competitors. Running 4090 and 7950X3D and mewmaxxing on ultra + high every settings on Baldur's Gate 3 and Dota 2, but temps after were fantastical. Obviously water-cooling is a component here, but these fans did WORK to keep the internal of my chamber breezy. Will be buying more and stocking up for future builds. 10/10 🔥

After letting the magic smoke out of one (Dell's fault, not Arctic's - I wouldn't have had to rewire the JST connector if Dell didn't insist on some dumb proprietary fan connector) I was able to get three of these things running and even at full power, they're *very* quiet, especially compared to the monsters that Dell ships in their 1u servers. I went with the 6k models, but I'm guessing even the 12k would have been plenty quiet.

Great fans. Quiet for the amount of air they move. Replaced some 12k UltraFlos and all but eliminated the noise.

Needed this for a sleeper build that didn’t have fan mounts and limited size. Pretty good air flow for the sound it produces. Does require special screws, that do come with it, but don’t use standard mounting screws or it could break the plastic.

This keeps the temp on my supermicro 1u server at bay but drastically lowering the fan noise. This should be the go to fans when looking to reduce fan noise on your 1u devices and not those low speed, low air flow brown fans that those youtube brown nosing youtubers suggest.

El performance de los ventiladores es muy bueno definitivamente cumplen con su función, tanto para servidores, NAS o para agregar un extra de ventilación a los headsync de la tarjeta madre funcionan a la perfección, el flujo de aire es bastante bueno y con bajo nivel de ruido. en comparación con la competencia NcTua, creo que valen cada peso de lo que cuesta el paquete de 5 es excelente y son PWM