Corsair’s PC enclosures are some of the finest enclosures you can buy. The case that started it all was the Obsidian 800D –– a premium full tower beast with advanced features and a drool-worthy appearance. Since then, Corsair has added the Graphite Series, Carbide Series, and Vengeance Series cases to their stable of acclaimed enclosures. With a complete line of cases to suit a variety of tastes, performance requirements and budget, the only type of case missing was a silent case, until now. The Obsidian 550D is a premium, mid-tower case with sound isolation characteristics that rounds out Corsair’s collection of enthusiast enclosures.