Technology: 8 CH. Channel: 1U HDCVI DVR Video In: 8CH. Audio In: 1CH & 1 CH Out. Key Features: (IP+ Analog+ HDCVI)Camera Supported;8CH synchronous Real-time Playback,Long Distance Real Time High Speed Data Transmission, HDMI,ONVIF version2.4 Conformance. HDD Support: 1HDD(Upto 4TB). Warranty: 01 Years.