Plus, available with all of our OptiBay Drives and drive kits is a USB 2.0 portable enclosure for your removed SuperDrive, turning it into a bootable, portable, bus-powered, external SuperDrive, giving you full CD/DVD read/write functionality anytime you want for loading system software or applications, as well as burning, playing, or ripping CDs and DVDs! have one disk a scratch disk and the other your system/applications disk, RAID configurations, one disk Mac and the other PC, extra photo storage for digital photographers, extra music storage for DJ's, extra video storage for videographers, and more. Two bootable drives inside your system provide a freedom and flexibility never before experienced in a Mac laptop. Now you can have previously unheard of capacities and performance in laptop disk storage and space for everything you need to store. or get just the OptiBay drive kit and use your own 2.5' SATA hard drive or SSD. Compatible with the MacBook Pro, MacBook, PowerBook G4, iMac, and Mac mini, the OptiBay replaces your system's internal SuperDrive (DVD Drive / optical drive) with a high performance SATA hard drive, or SSD (Solid State Drive), of up to 2TB. The OptiBay® was created by MCE for users who want as much storage capacity inside their system as possible.