Wderair 4 x 120mm Server Rack Mount Fan 12V with 100V - 240V AC Power Variable Speed Control, High Airflow for DIY Cooling Mining Rig, AV Cabinets, Home Theater, Refrigerator, Greenhouse

Installed on an open networking rack with the included hardware. The four fans span the rack perfectly and the holes line up with the rack holes. They thoughtfully included the clips to assemble the two fan sets together to make this possible. Easy plug and play from there, but boy are they loud when fully spun up. Just to be clear, most rack fans are loud. They maximize airflow over decibel levels. My other rack fans are actually computer fans that I select due to the low acoustic impact. I did feel I needed a bit more airflow at one point in the rack that gets rather warm. These fans do the trick. The speed controller helps me balance that decibel/airflow balance to the best effect. Quite pleased with them.

I’m on my laptop which is attached to my 4K monitor, I use a lot of demanding applications for work/ school. Although the fan on the laptop is good but it can only do so much and in fear of it crapping out on me and stopping my entire flow of work, I figured I’d give this a try. I got the two 120MM fans, bolted them together within two mins and was good to go! It comes with mounting brackets should you want to attach more fans. I love how it comes with the pegs legs should you want to lay it flat on a table. I love how it came with a dial which you can adjust the fan speed to your needs/liking. I was very surprised on how quiet it is. It does a fantastic job on pulling heat away from my laptop. I’ve noticed an improvement with performance as well. I’m very pleased with this, great for anyone who needs to keep their computer cool.

I bought this to install in my living room console to vent the hot air generated by my PS4, which is tucked away inside a compartment with a closed and locked door to keep my one year old from getting into it. The only problem is that the heat buildup caused by running graphically intense games would quickly get the inside of the cabinet way too hot, posing a damage risk to the PS4. This was just the solution I needed. I measured and cut an opening in the thin backing material of the console cabinet and installed these fans to exhaust the hot air out, and left the on/off/speed control switch sitting on the surface of the console until I can rig up a thermal switch or add a smart outlet to control it.

I got the fan for my bathroom air circulation, with these fan i can blow out the condensation after a hot shower, very easy to instal and the fan is also quiet, I LOVE IT !!!!

These fans are solid, appear to be good quality. I got them for my greenhouse, so will have a more detailed review after next summer, and will update then. But in the meantime they do move quite a bit of air, so should help keep the greenhouse ventilated.

OK. You want quiet fans that can move a lot of air? Check. You want 120mm fans that can REALLY move some air and dont care about fan noise? It has that too. You cannot complain with that at all. Variable controlled, not via software or through your UEFI (BIOS) but via your own two fingers.

This is 2x240mm fan arrays with dual ball bearing setups. The bearings they claim are good for 50,000 hours. While not as good as some bearings out there, like FDB which is rated between 100,000 and 120,000 hours or SSO/2 from Noctua which is rated for 150,000+ hours. But to put 50,000 hours into perspective, that is 2083 days or 5.7 years of constant use. I am using this in a unique way, where I am using this to extract heat into our basement from a small fin array I installed to warm the basement at the end of the loop. It works amazingly well, and saves me from having to install a 2ft length addon that is 79 dollars and wouldnt improve efficiency much being open as it is. (This takes more of that heat out at the lowest RPM speed than a second array would offer while being passive.) Because I only need the one array, I stored the second one away so as to offer up a replacement in, hopefully 5 years. This is a AC powered setup though, with a dial a speed knob. I found that barely up from slowest speed helps out enormously. I doubt you would need all four fans for a a router setup mind you, but they accurately said you could use this for Mining Crypto. (Just be careful as those are transient assets with no physical assets to support it.) It would work great for cooling open rigs though. At highest speed though, these are very very loud, at the speed I have it at though, it is sub ambient with other noises naturally overwhelming it. Like the rustle of leaves outside despite being in the basement and closed cell foam insulating between the floor joists which is very faint in sound. I can say I am happy though and this was worth it. I would likely just by the single 240mm array next time though, if I see another opportunity mind you.

Good airflow. Easy to control on your own instead of dealing with automated fan curves and no slowdown under 30% and other such junk. You can use it to cool off computers or other high powered electronics inside of a entertainment center.

I make my own method to cooldown the tube of CO2 Laser Engraver, and works perfect to me.

Review is for Wderair 4 x 120mm Server Rack Mount Fan 12V with 100V - 240V AC Power Variable Speed