I personally measured the 6450-24 (non-POE) from a meter away at just under 40db with stock fans. Some people have reported louder stock fans and have had to replace them to get acceptable noise levels, but if you’re comparing this to your 6610 (have one of these as well) it is not even close. I’ve yet to find a person who noticed any sound from my 6450 unless I point it out. I wouldn’t completely remove the fans, but do know that people have disabled all but one or replaced with even quieter ones. I have not.
I replaced mine now ! Dead silent !
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