Specifications. Mfr Part Number: . Case Type: 3U Rackmount. Material: . Front Bezel: Aluminum. Handle: Aluminum. Main Chassis: Zinc-Coated Steel. M/B Type: Micro-ATX (9.6 x 9.6 inch). Drive Bays: 1x 3.5 Drive Bay; 2x 5.25 Drives Bay; 4x 3.5 Drive Bays (internal). Expansion Slots: 4. Front I/O Panel: 2x USB 2.0 Ports. Power Supply:nbsp;None Supportsnbsp;ATX PS2 Power Supply. Color: Black. Dimensions (WxDxH):19.00 x 15.35 x 5.25 inch / 482.6 x 389.9 x 133.4 mm. RoHS Compliant. Chassis only. CPU MB HD memory and other parts are not included.