To add extra storage to your compatible Mac notebook*, insert the 1TB drive into the adapter bracket, remove your notebook's optical drive, and then insert the bracket with the drive. Thereafter, you can configure the drive via Apple's Disk Utility program and you will have plenty of options. Also, once you've removed the optical drive, you can place it into the enclosure. The enclosure allows you to continue using the optical drive with your Mac notebook. It utilizes a USB 2.0 interface for connecting it to your notebook.
Note! Please refer to the bracket's specifications to carefully note whether or not your MacBook or MacBook Pro is compatible with the converter bracket.