... OS Video Compression Format Main Profile H.264 Video Input 8 Channels BNC Video Output 1 Channel BNC, 1 Channel VGA ... Backup USB,Moved Hard Disk,USB Writer,Network Network Transmission 8 Channels real-time Network transmission with CIF resolution Recording Play ... Special player, Support AVI file format conversion Alarm Input/Output 8 channels input,1 channel output(Optional) Email Alarm Send pieces ...