... and 2 H 8 channel dahua digital usb video recorder with POE KD-1508N-P: 8 channel@D1, 8 channel@720P, 4 channel@1080P IP camera ... inputs, 1 channel audio inputs; ... DDNS, FTP, Alarm Server, IP Search(Support IP camera, DVR, NVS etc)Max Remote Users20 Users simultaneouslyRemote OperationMonitor, PTZ control ...