Summary: I have a GPU with no fan just a heat sink. it was cooking at 100c when playing games. It doesn't get over 55c now even maxing the card out. I have the fan flipped and the intake resting about 1mm over the heat sink. very lucky I guess how my computer is set up. Very happy with this.
Summary: I flipped the bracket on this and put it over my MSI AMD Radeon R9 280, 3GB GDDR5. It only knocks off 2-3 celsius when the card is at idle and when running Heaven benchmark (1600x900, extreme fullscreen). Vibration and noise are not a issue. If you need it this is a good buy as for myself...
Summary: It made my gpu warmer. It doesn't line up with it. It also wiggles in it's spot despite the screw being all the way tightened. This means it bumps my Wi-Fi card. Worst of all, it used more watts than advertised damaging my Corsair Power Supply Unit.
Summary: I purchased this to add some extra air flow when I changed to a motherboard that put out a bit higher heat than my old ones. It fits nicely into a spare card bay without requiring it to be inserted in a slot. Works well for the purpose intended. Easy install.
Summary: I bought this for replacement of the PCI protecting panel on the back of my computer case, which is not reusable once it is took off. I was not expecting spectacular ventalition before purchasing this fan.
Summary: I ran a similar blower fan rated for 12cfm at 12v and this at 12v. The 12cfm fan was blowing more air. I'm unsure what this fan actually has for a flow rate. It's fine for pc cooling purposes, I was hoping I could use it as a more powerful fan for a side project. Not the case.