quiet

I have a Dahua NVR but I'm sure this would work with anything. Noctua 5v fan (runs at about 15db at 100%) Noctua A-Series Cooling Fan Blades with AAO Frame, SSO2 Bearing (NF-A4X10-FLX 5V) https://www.amazon.com/gp/product/B00NEMGCIA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 3-pin reducer...

Hey guys I hope someone can recommend a QUIET PoE switch (needs to be rack mountable) I have a Buffalo 16 port PoE Switch - BS-GS2016P Here is the problem - It is a great switch, but the fans run non stop and they are loud. I think that part of the problem is because when you get into 16...