Synology DiskStation DS411slim Quick Installation Manual page 7

3 Insert the hard drive tray and push the tray all the way back.
Reminder: Make sure the tray is completely attached to the system. Otherwise, the hard drive might not be able to
function properly.
4 Repeat the steps above to assemble each hard drive.
Reminder: While installing the hard drive trays, make sure the trays are inserted properly along the respective top
and bottom hard drive tray rails.
5 Label the hard disk trays with the stickers provided to help you identify the hard disks.
6 Place DS411slim on the base for better ventilation and to avoid foreign objects from entering the fan.
7 Chapter 2: Hardware Setup