1-ch face detection or 4-ch false alarm filter, 16 Turbo HD/CVI / AHD / CVBS self-adaptive interfaces input, 16-ch video&1-ch audio input, H.265/H.265+ compression, 1 SATA interface,CH01-04: 3MP @ 15fps, CH01-16:1920×1080P @15 fps, 4MP Lite@15fps/ch, 4K UHD output, support CVBS output, standalone 1U case