iStar D Storm D-400L-7 4U Rackmount Server Chassis (Black) Case Type: 4U Rackmount Material: Front Bezel- Plastic, Handle- SECC Zinc-Coated Steel, Main Chassis- 1.2mm SECC Zinc-Coated Steel ( Japan Made ) M/B Type: ATX, EATX, Micro-ATX, Up to 12.0 x 13.0 inch External Bays: 1x 3.5'' Drive Bay; 7x 5.25" Drive Bays Internal Bays: 1x 3.5'' Drive Bay Case Type: 4U Rackmount Material: Front Bezel- Plastic, Handle- SECC Zinc-Coated Steel, Main Chassis- 1.2mm SECC Zinc-Coated Steel ( Japan Made ) M/B Type: ATX, EATX, Micro-ATX, Up to 12.0 x 13.0 inch External Bays: 1x 3.5'' Drive Bay; 7x 5.25" Drive Bays Internal Bays: 1x 3.5'' Drive Bay Expansion Slots: 7