4-ch 4K 1U H.265 AcuSense DVR 4 channels and 1 HDD 1U AcuSense DVR Support 2-ch Facial Recognition or 4-ch advanced model Perimeter Protection based on Deep Learning algorithm Support 4-ch AcuSearch Technology Encoding ability up to 4K/8MP@ 15fps Up to 8 channels IP camera inputs, each channel up to 8MP 5 signals input adaptively (HDTVI/AHD/CVI/CVBS/IP) Support All channels Motion Detection technology Support HDTVI Two-Way Audio technology Efficient H.265 pro+ compression technology