Summary: It's not a bad fan, but fulfills a certain niche for a case intake fan, some may try it on a heatsink or radiator due to it's static pressure (I've tried it on a Thermalright Silver Arrow) but I don't think it does enough to warrant usage there. I got 2 of these to basically put onto the side of my HAF 932's side panel to intake air to cool my video card, mobo and cpu a bit more, but results are probably 0.5-1c better than the stock 200/230mm CM fan that came with the...
Pros: - High static pressure - Very quiet - Got 2 during the 20% off all fans promo, so combined price was fairly cheap. - Nice sleeving.
Cons: - A bit weak in airflow, I am aware it does 35CFM max, but still weaker than I expected it to be overall. - Molex connector on the fan doesn't have both male/female connectors - Tested it in an open air environment where I had a piece of paper a meter away and the fan barely moves the paper just to see the level of effectiveness it brought.
Summary: If you're going to get a Silverstone AP fan thinking it will move a good amount of air, get the 180mm (which is supposed to be GREAT), or try the 140mm. This fan is OK, but falls kind of short compared to those 2.
Pros: Feels slightly heavier and more solid than the avg. fan (probably because of the extra plastic for the grille), cable sleeve used has a pretty tight weave which is good if you want your case interior to look tidy, voltage adapter cable (should come with all fans, I thnk)
Cons: "The AP121 was designed for use as a case intake fan where cooling object at a distance is required. At 1500rpm, the AP121 is designed as a quiet alternative to much faster spinning fans." Not entirely true in my experience. I used it as intended, to intake cooler air towards my CPU heatsink over a distance of about 6 inches. It worked, but not as well as an Enermax Magma, though the Magma is louder.
Summary: + Mycket fokuserad luftström - Mycket högljudd på höga varv - Ej PWM Passar utmärkt som insugsfläkt. Till skillnad mot vanliga fläktar så är luftströmmen fokuserad, klart positivt. Tyvärr är den bara tyst på lägsta varv, vilket man måste ställa in med fläktkontroll, motstånd eller liknande då avsaknaden av PWM-funktion gör att det i många fall inte går att styra via moderkortet.