Since being founded in 2003, Silverstone has established a reputation of producing top quality components being most noted for their cases and power supplies.I’m willing to bet that when most people hear the name Silverstone they think of either their top notch cases or power supplies. Probably less known is their large range of fans. Today I have the AP121 model from their Air Penetrator series, the newest line of fans. The Air Penetrator line looks to improve performance in intake applications with some new innovations. Follow along as I take a look at the AP121 to see what makes it so special.