Question regarding the FAN used by WD My Cloud EX2

yeah they make a HUGE difference. So glad they helped I use AC Infinity products for all my uses. Just upgraded my home theater and now have the rear exhaust thermostat controlled ones on top of my AVR receiver and dual fans on top of each of my external power amps. I think the space in the NAS is too small and too tight and no way for the hot air to escape and no heat sinks or enough to dissipate it.
I stopped turning off/hibernatig my NAS in the middle of the night as I used to (and you do) to prolong life as one user said it can cause MORE damage if you put them to sleep as these NAS drives are MEANT to be running 24/7 and not spun down
Glad your temps are down and your noise is gone.
yeah AC fans are super quiet even on full High power setting!!!
love it

I see your fan duct on Thingy. Very nice!
Your printer must be tweaked very well, because that’s one of the best looking prints I’ve seen in a while!