16 Turbo HD/CVI / AHD / CVBS self-adaptive interfaces input, 16-ch video&16-ch audio input, 18-ch IP video input(up to 34-ch IP),H.265+/H.265 compression,8 SATA interfaces, 8 MP@12fps, 4K UHD output,alarm I/O: 16/8, 2U 19″ case Recording 8mp .