... motion detection,timing.Support local and remote visit records.Support USB record backup.Support maximum 4T storage HDD.Support motion detection ... and linkage alarm.Support wiondows2000/2003, ... portsBUILT-IN HD PORT1 xIDE+4 SATA ports,support USB HD expansionPOWER SUPPLY220V,50Hz~60HzPOWER(EXCLUDING HD) ...