2.5" 9.5mm SATA 2ND HDD Hard Drive Enclosure for Apple Unibody MacBook/MacBook Pro (13 15 17) Plus USB Slim DVD / CD RW Burner External Enclosure (Case only! Drive is not included!) This hard drive caddy replaces the internal Drive of your Unibody MacBook, MacBook Pro (13,15,17) USB2.0 External SLIM Enclosure for Laptop Notebook CD-RW DVD RW Burners. The Drive is not included! Connector: SATA. It can be made part of RAID array and Bootable. A high performance SATA hard drive providing up to 500GB of additional internal hard drive space.