Fan 60x60x10 mm DC 12V 6010 Brushless Cooling Fan, Replacement Ball Bearing 60mm Fan for Cooling DIY PC Computer Case Fan - 2 Pin Case Fan (Pack of 4Pcs)

Well greased little fans move a good amount of air good for tiny computer builds.

I use these for non-computer uses (airflow through insect enclosures for anti-mold purposes) so I can't say how they work in that setting, but they haven't failed me yet! Perfect size for what I need an they emit a very low amount of noise. So far the quality is up to my standards and I will be buying more soon!

These were not bearing fans.

Updated Review: The issue I had with these fans appearing to have been 5V fans labeled as 12V has been resolved. In the last 5 packages ordered, all fans spin at the correct speed and draw the correct current. Good product at a great price. Original Review: I used the 12V versions of these regularly for a product I manufacture. They WERE great. Good price, good air movement and quiet. Then I got a batch that drew twice as any milliamps, spun so much faster and made so much more noise. I can only guess they're mislabeled 5 Volt versions of the fan. Happened with two different orders.

Poor quality fans, worked good first day of use. Real loud second day until the fans warmed up, third day 2 of 4 fans need help starting. Took two hours to install into my monitor and now I have to do it all over again.