NORCO RPC-3216 Black 3U Rackmount Server Chassis Motherboard Compatibility: Support EEB (12x13), CEB(12x10.5), ATX (12x9.6), Micro ATX (9.6 x 9.6), Mini ITX (6.7 x 6.7) motherboard Hot-Swap Drive Bays: 16 x SATA/SAS External Slim Drive Bays: 1 x slim CD-ROM bay Front Ports: 2 x USB 60mm Fans: 2 80mm Fans: 4 Internal 2.5 Drive Bays: 2 x OS drive brackets Dimensions (H x W x D): 16.9 x 25.5 x 5.1 (430mm x 650mm x 130.1mm)