H.265+/H.265 dual-stream video compression; Supports Full-channel AI-Coding; Up to 1 channel video stream (analog channel) Perimeter Protection; Up to 4 channels video stream (analog channel) SMD Plus; Up to 1 channel video stream (analog channel) human face recognition; Analog Camera Input: 4 channels, BNC; IP Camera Input: 4+2 channels, each channel up to 6MP; Audio In/Out: 1/1, RCA; Two-way Talk: Reuse audio in/out, RCA; Interface: 1 HDMI & 1 VGA; Playback: ¼; Internal HDD: 1 SATA port, up to 6 TB capacity; Power Supply: DC 12V/1.5Aen