... 8CH@720P, 4CH 1080P. Multi brand ip cameras 3.support, ONVIF HDMI, 8pcs HDD 4.2U 16CH NVR High Quality Dahua Onvif ... @D1 / 2ch@720P / 1ch@1080P8ch@D1 / 4ch@720P / 2ch@1080P16ch@D1 / 8ch@720P / 4ch@1080PIP Camera Supported ListDahua, Arecont Vision, AXIS ... DDNS, FTP, Alarm Server, IP Search(Support Dahua IP camera, DVR, NVS etc)Max Remote Users20 Users simultaneouslyRemote OperationMonitor, PTZ control ...