... Iphone, 3G network supported12. Backup via network, USB, SATA DVD-RW, easy and fast13.Supports Up to 8 ... .Video Mask AlarmsupportAction with AlarmsupportBackupSupport hard disk,USB flash drive,USB DVD\CD writer, networkNetwork interface1 RJ45 port, ... standard 485 interface,One standard 232 interface,two USB interfaceHDDInternal 8 SATA HDD interfacesingle HDD capacity2Tkeyboard controlsupportRemote ...