MAIN OVERVIEW FEATURES: Number of Total Expansion Bays: 2Number of 5.25" Bays: 1Number of 3.5" Bays: 1Drive Interface: Serial ATA/600Color: BlackMaterial: Acrylonitrile Butadiene Styrene (ABS),Steel,MetalForm Factor: InternalCompatible Drive Bay Width: 5.25"Height: 1.7"Width: 5.9"Depth: 7.2"Environmentally Friendly: YesEnvironmental Certification: RoHS