Mode One: One HDMI output, supporting single-screen 8K display output. (12MP/D1 + 64 previews + 16-channel playback).Mode Two: Two HDMI outputs, supporting two-screen HDMI heterogeneous display output (1*8K + 1*4K). (12MP/D1 + two screens with 36 + 36 previews + 16-channel playback).Mode Three: Four HDMI outputs, supporting four-screen HDMI heterogeneous display output (3*4K + 1*1080P). (8MP/D1 + four screens with 16 + 16 + 16 + 16 previews + 16-channel playback).