16CH HD DVR/NVR w/ 3TB HDD. Combination of 10 total Analog or IP cameras; Supports 16 Analog + 2 IP cameras, 15 Analog + 3 IP cameras …or up to 18 IP cameras by IP address. Triplex: Live / Playback, Record, Network. Standard H.264 Video Compression with low bit rate and better image quality. Support 2 x SATA HDDs (Each HDD can go up to 6TB). Exceptionally strong password and anti-hacking protocols to increase privacy and security. Snapshot, and Email notifications for real time protection.