Synology DX513 User Manual page 14

For 2.5" Hard Disk: Place the hard disk in the rectangular area (shown
below) of the hard drive tray, turn the tray upside down, and then tighten
the screws to secure the hard disk.
5 Insert the loaded hard drive tray into the empty hard drive bay.
Important: Make sure the tray is pushed in all the way. Otherwise, the hard disk
might not be able to function properly.
6
place.
Chapter 2: Set Up DX513 9