PLANET NVR-420 - Manual (Page 13)

9. Secure the HDD with the screws provided in the accessory box with a Phillips screw driver. There are
four for each HDD; two for each side of the tray.
10. Install the top HDD by attaching it to the corresponding SATA cable first.
11. Make sure the HDD is securely attached.
13
4-CH H.264 Network Video Recorder with HDMI
User’s Manual of NVR-420