ZyXEL Communications NAS326 Manual page 4

Hardware Installation
4a
3.5" HDD
5
4b
2.5" HDD
click
Check the ZyXEL website (product page) for a list of compatible hard
EN
drives. Make sure to back up your existing hard drive data first.
Position a hard disk in the tray according to the position of the screws
4
as shown. (3.5" - top & bottom; 2.5" - sides).
5 Slide the tray back into the NAS until you hear a 'click'.