The Be Quiet! Dark Rock 4 is an ideal CPU cooler for a powerful gaming system that also needs to be silent and look good. Registered as a trademark of Listan GmbH & Co. KG in 2002, BeQuiet! is a brand who manufactures Power Supply units, CPU coolers, PC cases, and case fans. The main target groups for products in the BeQuiet! range are PC enthusiasts and gamers as well as smaller and larger PC integrators. The company’s headquarters is in Glinde, close to Hamburg. At the present time the company also has branches in Poland, Taiwan and China. The major market of the Be Quiet! brand is Europe.