












🌬️ Cool smarter, not louder — upgrade your tech’s heartbeat!
The WINSINN 40mm 12V hydraulic bearing fan offers a powerful yet whisper-quiet cooling solution with 5000 RPM speed and 4.95 CFM airflow. Designed for 3D printers, PCs, and compact electronics, it features a maintenance-free hydraulic bearing for up to 35,000 hours of reliable operation. With a 30cm cable and XH2.54-2PIN connector, installation is flexible and hassle-free. Certified by CE, FCC, and ROHS, this 5-pack ensures your devices stay cool, safe, and efficient.











| ASIN | B0757LXKST |
| Air Flow Capacity | 4.95 Cubic Feet Per Minute |
| Best Sellers Rank | #73 in Computer CPU Cooling Fans |
| Brand | WINSINN |
| Compatible Devices | Desktop, Gaming Console, Laptop, Printer, Server |
| Cooling Method | Air |
| Date First Available | August 30, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.32 ounces |
| Item model number | FAN401012VH |
| Manufacturer | WINSINN Technology Ltd |
| Material | Acrylonitrile Butadiene Styrene |
| Maximum Rotational Speed | 5000 RPM |
| Noise Level | 26 Decibels |
| Number of Items | 5 |
| Power Connector Type | 2-Pin |
| Product Dimensions | 1.57"L x 1.57"W x 0.39"H |
| UPC | 733430760243 |
| Voltage | 12 Volts (DC) |
M**R
Very quiet
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.
J**M
Good fans for 3D printing
These are working well in my Sovol 3D printer (SV06 Plus Ace). Good air flow, no issues so far.
R**Z
Nice little value pack
First off, I don't know the long-term but I am using these on the 3d printer I have. So far so good. All worked after testing. The noise level is not bad since I was expecting a bit of noise with something this small and cheap. This is now the loudest part on my printer, but my printer was quiet to begin with. I would definitely buy these again due to the cost and quantity. Even comes with a little case.
R**Y
For my arrma fury Rc car
Got these for my Arrma fury. They are the correct voltage for the esc output and they are a lot quieter than the original fan. They still move enough air for cooling the motor. I peeled back the sticker on the back and hardwired a futaba j plug directly on the motor. I don’t know how long this will last in the dirt but they’re only $.50 apiece.
J**Y
Great little fan
My 3d printer stopped working cause the extruder fan was worn out. The new one got me back to working
P**I
Cheap with low durability
I have this connected to cool a RaspberryPi and 7" LCD Touchscreen being used as a room light and device controller. All that just means this stays on all the time. The fan seems put together well and pushes sufficient air it doesn't remain quiet for long. After 2 months the noise was noticeable and at the 3 month mark needed to be replaced. They are cheap and if you only need to run these periodically then they can probably work. If you want something to not have to think about again look for something else.
C**G
Cheap and Useful
These 40mm 5V fans come in a nice plastic case. The small 40mm 5V fans are very useful for smaller projects with MCUs, Raspberry Pis or MOSFETs involved so it's worth picking up a 5 pack. At about 2 bucks each, they're a pretty good value too. Running them at 60% PWM seems to be more than adequate cooling and also keeps them in a nice and quiet zone; when running them at full blast they do output quite a bit of air but also become high pitched and annoying.
T**G
Works great on Ender 3
Got these to replace a hotend for an Ender 3 and I've should have done it much earlier. The one one was making so much noise that it sounds like the printer was going to take off. For a set of 4 it's much cheaper through China but needed them asap so no complaints...
P**I
Bon produit pour ender 3 ou autre. Puissance de souffle correcte. Ils font quand même du bruit mais pour le prix c'est normal. Je recommande
T**K
One fan didn't work from the start and seller never replied to a request for a replacement.
P**R
The fans sometimes fail after about a year and you have to buy new ones but on the other hand they are really cheap so it's not too bad for home use. For a server you dint want to open for years you might want to spend 4x the price but if you want something cheap that will need some maintenance then these are great.
R**I
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。
C**Z
Precio y cantidad
Trustpilot
4 days ago
1 week ago