... 8-Channel Standalone DVR 2.H.264 Algorthm,Pentaplex 3.Support Internal CD / DVD-RW 4.USB Backup,SATA port 5.IN:16Ch Video 8-Channel ... Standalone DVR AST-DVR0804LBH.264 Algorthm, Pentaplex, Support Internal CD / DVD-RW , USB Backup, SATA portIN:16 Ch Video, ... -line user etc.VideoVideo Input4/8/16 channel, BNC, 1.0Vp-p, 75?, looping(optional)Video Output2 channel TV output, BNC, 1.0Vp ...