4 Channels , & 16CH(with GV-A16 board) is optional Input TypeD-Type: ... Input(s)4, 8, 12, 16 CamsAudio Input(s)4 Channels , & 16CH(with GV-A16 board) is optionalRecording Rate120 fps (NTSC ... FormatWavelet, MPEG-4, GEOMPEG4GV-DSP SupportYESGV-A16 SupportYESGV-NET/IO Card SupportYESSoftwareV8.3.4 / V8.3.3 / V8.3.2/V8 ... 98mm. Old PCB(D-Type Ver6.1): 150mm x 100mm. DVR CARD 800S