Installing them was easy, I had to use zip ties for one of them because my case (Corsair 100R) didn't come with enough long fan screws to put 2 fans in the front (Where I put these) even though it has 2 spots for them

The included screws were extremely hard to screw into the actual fans which made them very difficult to install

no problems, just a little hard to install, screws wouldn't set properly but that might just be my fault

Awful screws

I didn't like the screws that came with the fans, so I used twist ties instead

The small one being that the LEDs do not illuminate very well, but do look good though the meshing from the front of a corsair Air Carbide 240.The larger gripe is that the screws that come with the fans were impossible to screw into the fan and i had to use two screws from the original fans that were in the case to secure these

The screws are great

Make sure u have a sturdy screw driver

Don't buy unless u want the wrong screws for the fans

They have self-threading screws, so unless you put the screws in and retract before installing you will have a very hard time!

The fans also shipped with what I can only assume were the wrong screws

As such each fan is only held in by two screws, which in itsself isnt that much of an issue, however the screws that come with the fans were useless

rubber connectors (instead of screws) dampen noise/vibration.

I personally had the best luck putting the screws into the fan, and then taking them out, *before* installing the fans in the computer case.

BUT - the screws are a pain in the (REDACTED) to put in

screws are too fat / too short

If you are planning on attaching them to your case then the normal stubby screws that they supply should be sufficient

Really tough screwing

The fan(s) are very nice, very nice airflow, almost no sounds, and look amazing with the LED’s

Now with all of those working together, I ran a stress test with Aida 64 Extreme and the temps barely exceeded 60°C during the test's full load over a 15 minute period

Keeping my overclocked xeon x3450 3.4Ghz along with a coolermaster hyper 212 evo at around 30°c-33°c idle, gaming loads at around 45°c-50°c, and prime95 max load temp at 65°c.

While playing FO4 on max settings @ 1080P, the 390 reached peak temps of 94 C (YIKES!) which obviously freaked me out quite a bit