The ICY DOCK ExpressCage MB732SPO-B lets you use your 5.25 bay to its fullest extent by installing two hot-swappable 2.5" HDD / SSD bays, and a CD-ROM/DVD/Blu-Ray disc reader bay. To maximize compatibility, the disc reader bay can be used with either a slim (12.7mm) or ultra-slim (9.5mm) disc reader using an included multi-purpose spacer. Additionally, the innovative tray design expands compatibility to all 2.5" HDDs and SSDs, up to 15mm in height, and uses built-in pegs in place of screws for easy 100% tool-less installation. Full-metal chassis with plenty of ventilation holes keeps your drives safe from environmental damage and overheating issues. The ExpressCage MB732SPO-B is perfect in systems needing to maximize their space efficiency; Small-form factor systems, Home-Theater PCs with media collections on drives and discs, and photo/video editors working with traditionally..."Number of Hard Drives Supported: 2Number of Hard Drives Installed: NoNumber of Solid State Drive Supported: 2Number of Solid State Drive Installed: NoNumber of Total Expansion Bays: 3Number of 5.25 Bays: 1Number of 2.5" Bays: 2Wireless LAN: NoDrive Interface: 6Gb/s SASDrive Interface: Serial ATA/600Host Interface: Serial ATA/600Color: BlackMaterial: PlasticMaterial: MetalForm Factor: InternalCompatible Drive Bay Width: 5.25"Height: 1.6"Width: 5.7"Depth: 5.3"Weight (Approximate): 9.19 ozPackage Contents: ExpressCage MB732SPO-B Drive Enclosure User Manual Screw Slimline SATA 6 Pin to SATA 15 Pin Power Cable Environmentally Friendly: YesEnvironmental Certification: REACHEnvironmental Certification: RoHSLimited Warranty: 3 YearPackage Contents ExpressCage MB732SPO-B Drive Enclosure User Manual Screw Slimline SATA 6 Pin to SATA 15 Pin Power Cable "