AcuSense 1U 4-channel, 1 HDD DVR. Supports 2-channel facial recognition or 4-channel advanced model perimeter protection based on deep learning algorithm. Supports 4-channel AcuSearch technology. Encoding capability up to 4K/8MP @ 8fps (1 channel); 3K/5MP @ 12fps. Up to 8 IP camera inputs, each channel up to 8MP. 5-signal adaptive input (HDTVI/AHD/CVI/CVBS/IP). Supports motion detection technology on all channels. Supports HDTVI two-way audio technology on all channels.