Supermicro 19" ATX Form Factor, 1U Metal Chassis

Drive bays: 1 x Slim CD-Rom bay, 1 x 3.5" open and 2 x 3.5" HDD hidden bays. Slim CD-Rom drive not included

Expansion slot: 1 PCI slot

Power supply: 250W 1U Power Supply included

Cooling Unit: One blower fan included

Motherboard size: Up to 12"x 13"

Dimensions: 1.75"(H) x 19"(W) x 24"(D)