1. High quality 2nd Hard Drive Upgrade Upper Cable with Tools for Mac Mini A1347 (2012) / MD387 / MD388 2. Replace your broken or unworkable part with a new one 3. Each item has been checked and in good condition before shipping 4. Highly recommend professional installation. We will not be responsible for any damages to your device that you may cause during the changing of replacement parts 5. Grub screws are for holding hard drive on the front of the chassis
