... USB DVR 2.PTZ, Audio, Network, 3.VGA 4.OEM CCTV DVR H. 264 Network Digital Video RecorderCCTV ... . H.264 Real-time Recording, support USB, PTZ, network, two-way audio,Alarm, VGA;2. Support ... power for each camera;4. Dual-core CPU; Steady System Function;5. Playback, video, network transmission, mobile ... USB2.0 for backupBackup DeviceUSB2.0 U disk/Network download /USB DVD-RWPTZ Control SupportAlarm input/ ...