... 12V/500mA power for each camera;4. Dual-core CPU; Steady System Function;5. Playback, video, network transmission, mobile browsing, and ... 1 USB2.0 for backupBackup DeviceUSB2.0 U disk/Network download /USB DVD-RWPTZ Control SupportAlarm input/output4 alarm inputs, 1 ... E-mailWord hints sent to destination through E-mailNetwork FunctionsTCP/IP, PPPoE, DHCP , DDNSIE Remote Preview1/4 channels preview ...