Network Cabinet Fan (Dual 2pc Kit for Server Rack Cooling) Pair of Roof Rackmount Muffin Fans 120mm 4in Noise Level 55dBa Steel Frame Ventilation with 110V AC/Ground Cable -Tupavco TP1511

Nice first aid kit with supplies. I hope I never have to use it .

The included self-tapping screws don't fit. They are two small and simply push through the fan holes. Not a problem for me as I just re-used the nut and bolt from the old installation. These fans are very quite. I question there rating of 95 CFM as the feeling of air flow when placing your hand over the exhaust is very low. I'm still satisfied as both fans are exhausting the hot air in my cabinet which is the goal. I like that both fans come connected to the AC power cord and includes a Cable Tie Mount already secured. If you don't use the cable tie mount, just cut the cable tie.

Overall, I like these fans. They're a good quality build and fully die cast but that presents another problem. The included mounting hardware is suitable for plastic fans but these fans don't have threads tapped for the mounting holes. I have a tap and die set so I was able to fix this problem by tapping #10-24 threads and using some 3/4" #10 screws to mount.

I did not care if these fans were going to be loud in my cabinet, but after installing, I cannot hear these fans at all.The rubber shock absorber things were easy and worked. The top of my cabinet is a little awkward to get to so not having to blindly use a screw driver was a plus.The fan that came with my cabinet did not work. As a comparison to that fan, these have much heavier wiring and more importantly... They work. Lots of air coming out of my cabinet, I cannot measure it, but it is lots.

These fans may be appropriate for a server room separated from the people trying to work but you cannot use it in the same room as you sit. They are really loud and have no speed control or even an on/off mechanism. You just plug them in and they turn on. That's it for control.I had a single fan of the same size which sat directly on top of the primary heat generating component before. I could barely hear it on high and not at all on medium or low. I only replaced it because I thought dual attached fans mounted at the top of the cabinet would be more professional in the long term.They don't seem to produce greater airflow per fan than my original fan did. No idea why they make so much noise.They do the job if you don't care about noise... disappointed though because I do.

I installed these on three wall mount network racks, so far so good. It’s been 3 months.

A picture shows screws are stripping (unable to firmly secure either fan). The rack screw holes are not an issue (screws go through them fine). That is if holding the fan in one's hand and attempting to install a screw, only after 1/4 - 1/2 turn, the screw stops turning. Quality control required with screws.

The media could not be loaded. I brought the other fans from this company without reading a review and those sound like being in a data center, it was like I was close to a small jet engine but these fans are quiet with a very nice wind speed. These are good for small to midsize cabinet.