NV8016HF:

16 ch Video+16ch Audio, 4CIF record all channel, 480fps

NV8016HC:

16 ch video + 16 ch Audio(480fps ) 2 ch playback, 12XCIF+4XD1, 480 fps

NV8016HS:

16 ch video, 2 ch playback, Looking, 16X4 matrix SATA support selectable, CIF 480 fps

NV7016H:

16 ch video, 1 ch playback, CIF 240 fps