1,4 channel cctv DVR 2, H.264 compression cctv DVR 3,22 languages 4,suppore symbian,windows mobile, ... , VGA, Support SATA HardDisk, Mouse, USBX2 network, Audio,RS485, IE browse,10 languages*Faraday GM8183 chip;*Total 100f/s ... at the same time;*Recording bitstream/frame adjustable;*Support RS485 PTZ controll*Support more than one SATA hard disk 1500G* ... 4CH H.264 Mobile Phone View and Network CCTV DVR