If you are installing your own hard drives you will need to follow the steps below:
1.Power down the recorder and disconnect it from the power source.
2.Remove the screws holding the top cover to the rear panel and then remove the top cover.
3.Connect a Sata cable and hard drive power cable to the main board.
4.Secure the hard drive into place and then connect the Sata cable and hard drive power cable.
5.Replace the top cover, reconnect the power supply and start up the recorder.
6.Go into Storage Menu - Disk sub-menu.
7.Tick the check box next to the new hard drive and then click the Format HDD button.
Note: For the best performance it is strongly recommended that you use a surveillance grade HDD from a reputable manufacturer.