Mixed bag of products and qualities
If you're going to be buying these fans, here's what you'll receive: -2 of the pictured fans, rated at 12v 0.6a. -1 oddball fan, rated at 12v 0.18a. -dry thermal paste with cardboard particles in it (because they are stored open to air in a cardboard box) on all three. The two right fans both produce bearing noise. One produces small, intermittent noise while the other one is constant and very loud. The two cooler types use different aluminum design between diameters and split count. The interesting thing is that the heat sync i wasn't supposed to receive is actually the best one (for noise) lol. It makes no noise and runs very well, but i can't imagine a 0.18a fan will compete very well against a 0.6a fan in terms of air movement... So i guess it's still a loss. If you are using these to cool cpus you may need to do some rigging to get them to run quiet or even at all—one of the small boxes the heat syncs came in was crushed even though the larger outletpc box they all came in was completely fine. Edit: ~24 hours later the fans have been running for almost an entire 24 hours. Somehow the bearing noise has disappeared. They all run good consistently now—with zero unusual noise. I guess they needed a break-in period. I did have to place a tiny dot of rtv on the oddball's aluminum because it wasn't super snug in its holder which caused a rattling sound, but now it's fine. I would give this a 5 star if they had sent me all the right fans, but oh well. Even with the oddball fan, it still works! I will say that i still stand behind wiping off the old dried up compound and replacing it with new. You'll know just by looking at the new thermal paste that the old paste that it comes with is garbage.