TVT, 5-in-1 DVR video recorder, 4CH 8MP + 2IP 8MP audio I/O, 1HDD AI, supports AHD, HD-TVI, HD-CVI, BNC and IP. 4CH playback, recording at 4K@8fps, 4Klite@12fps, 1080P@25fps, allows 2 extra IP channels up to 8MP, VGA, HDMI and CVBS outputs (Spot). Bandwidth 16/40Mbps, audio 1E/1S, RS485, 1 HDD, 10TB. AI functions: Motion Detection and Perimeter