WINSINN 40mm Fan 12V Hydraulic Bearing Brushless 4010 40x10mm for Cooling 3D Printer Extruder Hotend - High Speed (Pack of 5Pcs)

Not a High-speed fan. Works like the local fan, slow speed

DC-ACインバーターのFANが壊れた為、40mmが必要で取り敢えず購入しました。予備も考えて5個セットで購入です。風量は結構あります。インバーター内部も確実に冷えます。音は高音で煩いです。風量を得る為に高回転になり、煩いのかもしれません。抵抗を入れて回転数が落とせれば良いのですが？ ★結論★ FANの仕事はしっかりやるが、兎に角煩い。

ok

I, like many others stuck an allen screw in to my fan on my Maker Selct v2 while I was putting it back together after removing a piece of filament after the roll ran out. When I got my printer the extruder fan would make a god awful squawking as the machine was booting up and then normalize, but was never very quiet. I bought this printer as an open box and I suspected that the noise might have been the reason that someone returned it because it was otherwise a perfectly fine printer. Needless to say, after I broke off three blades from the same side of the fan the fan was VERY noisy and rattled anything that wasn't secure in it's wake. I say all of that to qualify my review because I'm about to rave at how quiet the fan is, but it could be because I've been living with a fan that was on it's last leg for a couple of years and one that was severely damaged for a week or so. Having said all of that, this fan is incredibly quiet. I booted the machine after replacing the fan and waiting for it to come on.... waited....must have reversed the wires on the plug when I shortened it and put it back together... NOPE it's just that quiet. Can't hear it at all. My printer sits right next to me at my desk and since we've been quarantined it's been running pretty much all day every day and it's such a better experience now that the fan isn't rattling or squawking at me. Recommend these fans if you're looking for a quieter (than mine was) replacement or if like so many of us that have these printers, have stuck an allen wrench through your fan at full speed and broken off some teeth. Eventually the imbalance will wreck the fan anyway so you might as well go ahead and order some.

Bel oggetto ottimo silenziose unico difetto uno dei 5e difettoso

Good fans not to loud and move a good amount of air. Well packed in a nice box.