D-Type: DB15 X 2 Video Input(s):4, 6, 8, 10, 12,16 Cams Audio Input(s):1 Channel Recording Rate At 320 X 240 frame display:30fps Recording Rate:30fps/25fps(NTSC/PAL) Display Rate: 30fps/25fps(NTSC/PAL) Compression Format :MPEG4 Wavelet