30mm 5V Fan - Hydraulic Bearing, 9000 RPM, 3010 Cooling Fan for Portable Devices, 30cm Cable with XH2.54-2PIN, Brushless 30x10mm (5Pcs)

Oddly enough, the PlayStation VR module given to me by my neighbor had no fan in it! The fan was missing entirely, and there was no indication that the module was pulled apart. The PS VR setup just failed due to heat after more than 10 minutes of playing.I looked into replacements (3-pin PWM fans), and nothing would be delivered short of three weeks from China. Just one fan would cost $18 USD. So I chose to go with this 2-pin fan. I soldered it up, and it works like a charm! It may be a bit louder when running, but there have been no issues with heat or the sound of the fan when the VR setup is used.

I put these in a custom duct for cooling an 8 port SFP+ switch in my rack. They move a good amount of air and are quiet for a fan of this size that actually works.

They are louder than my old fans that they replaced. They also take about 30 seconds to spin up to full speed, and they don't seem to move as much air. But they work, and they were super cheap, so I'm happy.

The stock fan on my JGAurora A5 was always loud and as it was nearing the end of its life it only got louder. I ordered one of these and soldered a female JST (2.54) connector to the fan connection for this and future fan changes (should make fan swaps simple plug and play from now on). I powered on the printer and no noise. Dead silence. I thought something was wrong with my subpar soldering skills. I checked the fan and it was spinning at full tilt. Awesome. Pack of 5 is great also.

These fans functioned as described dimensionally accurate pleased with purchase

Draws 35mA @ 24V. That's 0.84W. There is no air flow. I sincere don't know what this well be good for. You may as well run passive cooling should this fan suffice.Spec stated 4.05CFM. It feels like 1CFM probably. Definitely DO NOT use it on your hotend. It's gonna get heat creep and clogged AF.

These fans are not very reliable, as I already had one fail within two weeks of installing it on my 3d printer. I initially left a one star review, and WINSINN contacted me and offered to replace all the fans immediately, and the replacements arrived in about five days. The price on the sleeve bearing fans is cheap for a reason, do yourself a favor and spend the extra money and get the dual ball bearing fans. They are quiet and a lot more reliable. Very pleased with the WINSINN company for standing behind their product and reaching out to contact me.

Replaced the failed marlin board cooling fan in my AnkerMake M5C. The first lasted a week and a half, the second a week, and the third one has made it two days and counting.To be fair, the premature failure is likely partly caused by high heat and the the diagonal screws on the printer which results in the fan’s frame warping. They don’t move a tremendous amount of air but I’ve also seen worse.It would be easy to go lower than 3 stars based on the fans, but the manufacturer’s response to my expressing concerns makes the experience more palatable. I don’t think these are great for my purpose but I think they could work well in other applications and the makers stand behind them.