ARCTICF12 PWM PST (5 Pack) - 120 mm PWM PST Case Fan with PWM Sharing Technology (PST), Quiet Motor, Computer, Fan Speed: 230-1350 RPM - Black

I’ve used these in a few builds now and they are so quiet under normal use that you almost can’t hear them at all. The five pack is a great value as in most circumstances it will be enough to fill out a build. Even under full load, these fans aren’t as loud as many others I’ve used. They provide great airflow and aid in keeping my rigs cool and nearly silent. Noctua fans are maybe just as good, but not better in my experience. And not always as quiet. These are way more worth the money imo.

Bought these maybe 10 months ago. Not good with computers, so had a buddy help me install. I remember we ran into problems with trying to install them. I'm not so sure it was the fan's problem, might've just been more my computer didn't have enough connections or the right type of connections for the fans.Either way, my computer fans were all broken and my PC got hot enough to crack my tempered glass. Installed 4 or 5 of them into my pc and my computer hasn't had any problem with overheating since. They are very quiet and I never hear them. Well worth the money.

Very cheap and great solution to filling out the rest of the fan slots in my pc case. The daisy chain/smart fan feature saved a lot of slots on my motherboard, and I could effortlessly chain all 5 fans together. They are relatively quiet, just make sure you set your fan curve. Overall for the price, I am very happy with the product.

Not much more to add other than the headline. I've been using these for two years and they stay relatively quiet at idle but get decently noisy at full load. I know it's not something that can really be avoided but I've heard quieter. The airflow is great for the price and I'd recommend them to anyone who doesn't want to pay the arm and leg needed for higher end fans.

These fans are great for Server I built alittle on the loud side but to be expected from a Server and in a closet

These are real nice fans. When out in the open, they can move a lot of air. I used these along with a PCIE fan bracket for extra GPU cooling. PST daisy chain is helpful to save fan headers, in case your motherboard does not include many.These fans are also very quiet. Most of the noise coming from my PC are the stock GPU fans, so I got these to help lower noise levels by lowering the GPU fan curve.These are not static pressure fans. These fans are, more or less, for air flow. So these will move a lot of air, but it will struggle to maintain a certain pressure. Arctic P series are designed for static pressure. If you're looking for good fans for radiators and intake fans, spend a bit more and go for the P series.

Easy to install, durable and silent

I purchased the 5-pack in black with the connectors that allow chaining the fans together.Right out of the box, I swapped out my aging PC's 3 loud and rattling original fans for 3 of these and my likewise obnoxiously-whirring liquid cooler's fan for a 4th and they worked perfectly for both roles in making my PC run silently.The 5-pack leaves me with a backup spare for now, and I will seriously consider getting some more to fill in my lower fan array.One thing to note about the coloring is that the provided screws have a shiny metallic finish, which I found nice for being able to see them easily while installing against the black plastic of both the fans themselves and of my case's fan mounting plate, but I could see this being a pro or con depending on your color preferences and how your case fans mount (on my PC the screws are hidden from view).