CCSI has been manufacturing rack-mounting chasses for PC's for almost 20 years. We were among the first to sell the IBM AT compatible in a rack chassis, when it was first introduced. As the need arose for higher density mounting configurations, and ever higher speed processors, CCSI stayed ahead of the curve with new and innovative chassis designs. Our chasses breathe so well that, combined with our ductwork, they can adequately cool the fastest processors, even when they are mounted on a dual-processor motherboard. Our chasses are available in 1U, 2U, 3U and 4U heights, and all of our chasses will accommodate any ATX motherboard, as well as many different drive and power supply configurations, mounted singly, redundant, or hot-swap. Our Nickel plate finish radiates heat better than painted finishes, and looks better too.