1. NVR3216 16CH Network embedded dvr 2. 4CH@1080P, 8CH@720P, 16CH@D1 3. ... , FTP, Alarm Server, IP Search(Support Dahua IP camera, DVR, NVS etc)Max Remote Users20 Users simultaneouslyRemote OperationMonitor, PTZ control ... ports, 1 for mouse control, 1 for backupRS232Dahua keyboard, PC communicationRS485PTZ controlEnvironmentalPower SupplyDC12V/3.3APower Consumption20W(without HDD)Working Environment ...