Video Input:4 channel,
Operating System:Embedded LINUX
Operation interface:Graphical  operation  interface, which  supports  mouse ,panel,remote  control
TV system:PAL/NTSC
Video Compression :H.264
Audio Compression:ADPCM
Video modes:Manually,timing,alarm,motion  detection
Backup Mode :USB Device/Network /SATA Device;
Monitor  Detection:PAL:720×576(D1);NTSC:720×480(D1)
Playback  quality:352×288(CIF);NTSC:352×240(CIF)
Video  rate:PAL:25 frames/sec(adjustable)   NTSC:30  frames/sec(adjustable)
Save  Video:the  hard  drive,network
PIZ control:RS485
hard  disk  interface:2  SATA   interface, each support 2T hard disk
Network  interface: RJ45  10M/100M  self-adaptive  Ethernet port
USB  interface:2 pcs USB2.0  high-speed  interface
Power Supply:12V/3A