... -in,1CH video-out 4.PTZ Control, SATA HDD H.264 Network DVR, 4CH DVR, CCTV DVR Features:1. 4CH Full D1 realtime recording resolution 2 ... seconds before alarmingNetwork ProtocolTCP/IP,PPPOE ,DDNS ,FTP,UPNP,ARSP and NTPEthernet remote viewSupport remote surveillance up to 10 users simultaneouslyVGA ...