See the Hikvision NVR on Amazon: https://amzn.to/3z9R6WW
See the WD Hard drive on Amazon: https://amzn.to/2DfrKNk

Check out my Blog: http://hometechdiy.com/hik-nvr-instal...

This is a quick demo on installing a hard drive in the Hikvision 16-port NVR. This NVR is model number DS-7616 and I am installing a Western Digital Purple 4TB drive. It was cheaper for me to purchase the hard drive separately, and install it myself later. The purple drives are made for surveillance systems and can better manage the constant writing of files. I open up the NVR by removing the screws and install the HDD. I then close up the box and call it done.