... USB*1,network,Audio, RS485 , IE browse, 25languages Features:4CH,H.264 compression,support SATA HardDisk, Mouse, USB*1,network,Audio, RS485 ... ,BlackBerry ,mobile phone live view via 3G net 4ch separate video display and compression,video simutanelously 1CH Audio ... (10M/100M) PTZ Control 1 RS485 USB Interface 2*USB Loop output Not support Hard Disk 1 SATA ... 310mm x 220mm x 45mm(W*D*H) Weight 2.5 kg