Cooler Master ATCS 840 (RC-840-KKN1-GP)

• Full-tower chassis in matte black finish
• Supports ATX, Micro-ATX, and up to E-ATX (330 mm) motherboards
• Bottom-mounted PSU bay accommodates up to two standard ATX power supplies (PSUs not included)
• Removable slide-out motherboard tray for convenient installation and cable routing
• External VGA duct channels cool air directly to the graphics card
• Five external 5.25" bays and one external 3.5" bay for optical drives and card readers
• Six hidden, side-accessible 3.5" tool-less drive trays for clean internal storage installs
• Pre-installed with three 230 mm front intake fans and one 120 mm rear exhaust fan
• Expansion to support up to eight total fans (additional top, side, and bottom mounts)
• Bottom air inlet and removable dust filters simplify maintenance and improve airflow
• Front-panel I/O: 4× USB 2.0, 1× eSATA, 1× IEEE 1394 (FireWire), plus audio in/out jacks
• Durable steel and aluminum construction with tool-less drive trays and thumbscrews for quick upgrades