... , SMTP, NTP, DHCP, DNS, IP Filter, PPPOE, DDNS, FTP, Alarm Server, IP Search(Support Dahua IP camera, DVR, NVS etc)Max ... Remote Users20 Users simultaneouslyRemote OperationMonitor, PTZ control, Playback, System setting, File download, Log informationHard DiskHard Disk8 SATA ports, 8 ... ×100mm(W×D×H)Weight6.0KG(without HDD) cctv nvr system