... 2.PTZ,USB,VGA 3.CE,FCC CCTV DVR Video Recorder 8CH H.264 surveillance system GS7008ACProducts Features:1. Adopts ... phone surveillance4. Support backup with USB Flash Disk, Movable hard disk,USB writer, Network 5. Support 1channel. Main output ... 8channel playback simultaneously(Optional playback channel)Recording BackupUSB,Moved Hard Disk,USB Writer,NetworkNetwork transmission8 Channels real-time Network ...