Nimitz 2nd HDD SDD Hard Drive Caddy for Macbook Pro Unibody Add a 2nd drive to your macbook pro by replacing your superdrive Newest version, without bottom cover, the lower case of the macbook pro can be closed strictly.(pictrue #5) This item only fits unibody models (Late 2008/Early 2009/Mid 2009/Late 2009/Early 2010/Mid 2010/ 2011/2012),Not Compatible for Retina Macbook Pro. Package Content:1x 2nd hard caddy for Apple MacBook/ MacBook Pro,small screwdriver and spudgers Note:the drives not included