With Pure Rock, be quiet. presents a CPU cooler series aimed at the essential category of PC systems.With Pure Rock, be quiet! presents a CPU cooler series aimed at the essential category of PC systems. Bringing be quiet!'s award-winning technology to quiet multimedia and graphics systems, and entry level computers of all types, be quiet! Pure Rock delivers an exceptional price-to-performance ratio. Pure Rock Slim's design is compatible with all current Intel and AMD sockets and fits particularly well in PC cases with limited space thanks to the asymmetrical and compact construction. If you are seeking the best possible mix of performance and price in the Essential CPU cooler segment, your search is over. Pure Rock Slim simply has to be your choice.