1. NVR3216 16CH Network embedded dvr 2. 4CH@1080P, 8CH@720P, 16CH@D1 3. Multi brand ... SATA HDDs up to 6TB, 2 USB2.0> Built-in web server, CMS(DSS/PSS) & DMSS ModelDH-NVR3204DH-NVR3208DH-NVR3216SystemMain ProcessorHigh performance ... , DNS, IP Filter, PPPOE, DDNS, FTP, Alarm Server, IP Search(Support Dahua IP camera, DVR, NVS etc)Max Remote Users20 Users simultaneouslyRemote ...