I've had this product for a day now.
First I ought to point out that the packaging didn't require vigorous hacking with a machete; The whole thing was easy to open - thumbs up for that.
A pass-through connector is provided - so you can plug one end into something that needs power and the other into something that gives power.
The fan unit itself seemed fairly sturdy and shifted A LOT of air - more than I expected from a small unit. It's been put to work cooling a GeForce graphics card and is doing it's duty diligently (as far as I can tell) so far.
I don't have a built-in temperature sensor so I can't convincingly mourn the lack of automatic speed settings on this fan. To me, it's a fan - the larger an airflow it can create, the merrier, as long as it isn't gale-force winds we're talking about.
A few notes:
-This was marketed as a 'Video Card Cooling Fan'. This isn't quite right - Yes, it does cool the card, but passively. Hot air is DRAWN IN by the fan and EXPELLED through the back of the case, which then creates a temperature difference between the air and the video card. This temperature difference is what cools the card. If the fan were to be placed within a short distance of the card the cooling effect would be greater. It *could* be reconfigured so as to blow cool air onto the card directly, but this would require a bit of case modification.
- I find that the fan has a little bit of 'wiggle' when placed and locked in a slot. This is annoying, as with my video card (Geforce 8800) it tends to rest on the surface. The fan then creates a vacuum which in turn puts a strain on the motor, and it ends up *sounding* like a tornado but not expelling much air. It's a big design flaw which could have been easily addressed by having channels cut into the surface to allow airflow. Or built-in 'feet' to prop it up. Right now my solution is to place four one-penny coins between the fan and the video card to prop it up, but I plan on adding channels/grooves so I can reclaim my precious £0.04.
-This is a quiet (not silent) fan if not put under strain. It moves a lot more air than any of my other silent fans ever have or will. If it sounds loud to you, make sure it's not squashed against whatever you're trying to cool.
Overall the fan itself deserves high praise. It gets rid of hot air brilliantly. As 'A Customer' said, it could be fitted by a monkey. However, there's no chance of an airflow when the fan is squashed up against the card and I reason that a monkey (the same one?!) must also have overseen that aspect of the design.
But I do like the fan.