Your business or home is sure to stay secure with the Samsung SNK-D5081 4-megapixel Super HD NVR Security System. The simplified NVR installation eliminates the need to run separate power and video cables for each camera. This means easier installation and less drilling through walls. The eight 4-megapixel cameras included result in a clear and crisp detailed video. With these cameras, you'll be covered day and night with night vision.