1)Video Compression :H.264
2)Preview:D1; Record:CIF
3)Video Input:BNC*4
4)Video Output:BNC*1;VGA*1
5)Audio Input:RCA*1
6)Audio Output:RCA*1
7)4 channel simultaneous playback ,3 USB,1 SATA HDD(Max 2T)
8)RS485, Support TCP/IP, UTP network protocal, Support DDNS, Multiple languages support
9)Support iPhone,BlackBerry,Symbian S60,Android,Windows Mobile,(GPRS/CDMA/3G)