User's Manual

Tools and Parts for Drive Installation
Please prepare below tools and parts before setting up your Synology NAS:
A screwdriver
At least one 3.5" or 2.5" SATA drive (please visit
www.synology.com
for compatible drive models)
Warning:
If you install a drive that contains data, the system will format the drive and erase all existing data.
Please back up any important data before installation.
Rail mounting kit (please see the
Optional Accessories
section to nd out the suitable rail kit for cabinet
installation)
Warning:
We suggest mounting your Synology NAS on a cabinet before installing any drives since the heavy
weight will increase the installation di󰀩culty.
Install Drives
Please follow the steps below for drive installation:
1
Open the drive tray.
a
RS4021xs+
a
Press the small button located on the left side of the drive tray handle. The drive tray handle pops out.
b
Pull the drive tray out by its handle as shown above.
2
Install drives:
For 3.5” drives:
Place the drive in the drive tray. Turn the tray upside down and tighten screws into the four
spots indicated below to secure the drive in place.
Hardware Setup
12
2
Chapter