... , recording, playback, backup & remote accessControl ModeFront panel, USB mouse, IR remote control, Keyboard, NetworkVideo & AudioIP Camera Input4ch@D1 / 2ch@720P / 1ch@1080P8ch@D1 / 4ch ... , DDNS, FTP, Alarm Server, IP Search(Support Dahua IP camera, DVR, NVS etc)Max Remote Users20 Users simultaneouslyRemote OperationMonitor, PTZ control ... ×D×H)Weight3.0KG(without HDD) digital video recorder camera dvr