Wathai 4 x 120mm GPU Mining Rigs Server Racks Fan with 110V - 240V AC Plug

These fans are amazing. Got them to cool my GPU mining rig and they do the job very well. My 2070 Super alone went down 3 celcius or so. They are surprisingly quiet on the highest setting and push air better than any other 120mm fans I owned. It came with a bracket to link the pair together if you want one long 4 fan strip. It also came with legs if your using them horizontally under a device. Only time will tell how long they will operate this good for, but I can highly recommend this to anyone looking to push lots of air onto a device.

As far as noise level, it's 4 fans running all at once, so there's going to be some noise, but it's not bad at all, at least I don't think so. The speed controller works just fine, and there's hardware to mount the fans together. I've had these for 10 months now and they run 24/7, and they are still going strong. I keep them running at a slow speed, but they have been running for 10 months non-stop. I have a small cottage that I tuned into a media room. It has a window AC and I use these fans to keep air circulating within. It's a nice get-away from the in-laws... the lady and I can sneak out there, work up a sweat (exercising of course), flop down after, and enjoy the breeze.

I keep a fan going in my bedroom at night for the white noise and ventilation, but I was tired of buying expensive fans that would last a year before seizing up. These are Walthai ball bearing computer fans, so they should last for a good, long time. I have them in my bedroom window, not only do they move a lot of air but they make a pleasant droning sound that really help me to sleep. I've been using Walthai fans in my computers for years, and have had zero failures. I'll probably buy more for my kitchen and bathroom.

So far they were good I just wish that the pigs that they come with but you have to screw on were shorter. I really really like the dial how we can control the fan speed. I can turn it up high when I’m working on my computers and then turn it on low when they’re arresting but still on. It’ll also be great for the summertime when the room gets hotter I can have this fan speed all the way up.

Not too loud, but definitely not whisper quiet. It puts out a lot of air on high speed to the point that I’m able to use it by it self to cool my very large AV receiver.

You get "4" fans total, with hardware to connect all 4 together. Power supply with variable speed. All the wires needed to connect all 4 fans. Quiet too! but with good output. Using on my 60" LG Plasma, that was getting too hot. Works great! A+++++++++

I bought this to cool a pc radiator hooked up to a homemade cooling system for an air compressor. It was only used a few times then sat for a year. When I tried it again it was dead. I thought maybe it’s the power control box so I ordered a 2 fan model just for the control box. The model num on the new controller was the same as the old one but it wouldn’t power the old fans… but also the old controller wouldn’t power the new fans. So it’s almost like both the fans AND the controller died… anyway I only used it a few times so I feel like I was ripped off.

Well made and blowing Well and tnx for that fan speed control knob