20. Push the HDD holder forward and screw hole of HDD holder will match the screw hole on the DVR unit and HDD
holder should hook on the stabled hook on the DVR unit.
21. Screw the HDD holder inside the DVR unit.
23. The look of four hard disks are installed.
22. Screw the holder on the DVR unit.
24. Push the cover forward and secure the cover
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