The NDVR8 series are 8-camera network digital video recorder systems designed for home and business. The cameras (SM-218) can be installed outdoor/indoor for day time or night time recording. The NDVR8 uses H.264 video compression producing clear digital video recording and smoother/faster video streaming over the internet. The system model comes with a 320GB, 500GB, or 1TB of recordable space. It can record up to 22 days under normal quality with 1TB. You can monitor your home/business remotely anytime via Android or PC.