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Aluminum ChassisWith an aluminum alloy construction, the Cooler Master Cosmos S (RC-1100-KKN1-GP) reaches the balance between chassis stiffness and heat dissipation.
Superior Expandability with 11 Drive BaysBoasting seven 5.25" external drive bays, and four 3.5" internal drive bays (converted from 3 x 5.25" drive bays), the Cooler Master Cosmos S (RC-1100-KKN1-GP) provides superior expandability.
Peerless Cooling PerformanceThe Cooler Master Cosmos S (RC-1100-KKN1-GP) features one huge 200mm fan on the side panel for maximum VGA cooling, and triple 120mm cooling fans on the top, in the front and at the rear to optimize internal airflow for peerless cooling performance.
Tool-free InstallationThe tool-free design ensures quick installation and upgrade for expansion cards, 5.25" and 3.5" devices to save your time. Start enjoying computing rapidly!
Easily Upgrade to Liquid CoolingThe Cooler Master Cosmos S (RC-1100-KKN1-GP) features a spacious interior and rear retaining holes for easy installation of liquid cooling systems.
Convenient Top I/O PanelThe Cooler Master Cosmos S (RC-1100-KKN1-GP) features a convenient top I/O panel for easy access to one IEEE 1394, one eSATA, four USB 2.0 and two audio ports.