Includes everything needed to replace your optical drive with a second drive or Solid State DriveAdd up to an additional 1.5TB of internal storage. Add a Solid State Drive (SSD) for near instantaneous boot and app load. Even create a RAID array! Includes bracket, 5 piece toolkit, screws, and detailed installation guide for complete all in one solution.Configuration flexibility is yours when you replace your MacBook or MacBook Pro's internal SuperDrive with the OWC Data Doubler. This custom engineered blue anodized aluminum bracket with attached PCB circuit board comes ready to mount any 9.5mm tall 2.5" SATA hard disk drive and even Solid State Drives. Then, just install the entire assembly into a MacBook or MacBook Pro 5.25" optical drive bay. OWC Data Doubler makes it easy to custom design how you want your internal storage to perform. Installed drives are recognized like any other high speed SATA storage device and can be setup and partitioned using the Apple Disk Utility Program.