New 12.7mm IDE ATA CD DVD SuperDrive Optical Bay SATA Hard Drive Enclosure 2nd Second 2.5" HDD SSD Caddy for Apple Mac mini A1176 2007 2006 1.5 1.66 1.83 2 GHz Core 2 Duo Condition: Brand New In Box, Never used. made of Aluminium, only 60g weight. It's 12.7mm IDE ATA Second HDD Caddy, comes without bezel, you can get it from the old opital drive, free a cross head screwdriver By replacing your optical drive, you can install up to a 320GB hard drive in this enclosure to increase your available storage space. Supports Mac OS, compatible for PowerBook G4 Titanium Aluminum iBook PowerPC Mac mini Supports Windows OS, compatible for Most brands of laptops with 12.7mm IDE internal optical drives, such as HP, Dell, Acer, Sony, Lenovo etc.