Key Features: Build-in SATA power connectors with user selectable input voltage (115V & 230V AC) Durable design structure with heavy gauge metal housing Sturdy metal case is ideal for all duplication & external storage needs High capacity dual 80 x 80 x 25 mm ball-bearing cooling fans in combination with uniquely designed front vents provide maximum air circulation Specially designed metal grids to reduce electro-magnetic interference Power switch on the front bezel with built in LED indicator Install up to 15 target DVD-RW or CD-RW drives Choice of black or beige color 9-Bay Hercules 13-Bay Hercules Product Specification   Model Hercules SATA Series Available Models 5, 6, 7, 8, 9, 10, 11, 12 and 13 Bays Target Up to 15 targets Color Black Power Connector Serial ATA (SATA) Power Connector Power Source 5 & 7 Bay = 250W Swtiching Power Supply 9 Bay = 300W Swtiching Power Supply 11, 12 &13 Bay = 400W Swtiching Power Supply HDD Mount Capacity Yes Cooling Fan 5 & 7 Bay: 3 pc 80 x 80 x 25 mm 9, 11, 12 & 13 Bay: 5pc 80 x 80 x 25 mm Power Indicator Yes Material SECC (Steel / Electrogalvanized / Cold-rolled / Commercial Grade)