Remove the front panel's drive bay cover. 2. To detach the drive tray from the Synology NAS, push the latch upwards and lift the handle. 3. Insert drives into the drive trays. 4. For 3.5 "Remove the fastening panels from the drive tray's sides. Insert the drive into the drive tray. Then, to secure the drive, insert the fastening panels. 5. For 2.5 "drives: Disconnect the fastening panels from the sides of the drives tray and save them somewhere secure. Place the drive in the region of the drive tray indicated by the blue rectangle below, then flip the tray upside down and tighten the screws supplied to secure the drive. 6. Insert the filled drive tray into the empty drive bay. Insert the drive tray into the vacant drive bay, ensuring the "UP" side is facing up. When the tray is securely fastened, you ought should hear a click. 7. If you have prepared another drive, repeat the preceding procedures to install it. 8. The drives are labelled as indicated below. 9. To complete the installation, replace the hard drive bay cover. To Setup Synology DiskStation DS220j visit Find.synology.com