... up to 16TB, 4 USB2.0> Multiple network monitoring: Web viewer, CMS(DSS/PSS) & DMSSTechnical Specifications ModelDH-DVR0404HF-S-EDH ... Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup selection, Digital zoomBackup ModeUSB Device / eSATA Device / Internal SATA burner/ NetworkNetworkEthernetRJ-45 ... 440mm×460mm×89mmWeight6.5KG(without HDD)Application System 16CH Digital Video Recorder DVR