"if you are putting something together that you need to keep running but can’t access easily, it’s probably worth considering something like the Noctua IndustrialPPC. Some examples may be a home server or bitcoin miner you keep in a closet or attic, or a mobile system installed in a car or RV, or a server kept at a remote farm somewhere."
Carl Nelson - HardcoreWare.
Noctua IndustrialPPC fans reviewed by HardcoreWare - Full review.