... 32TB, 1 eSATA up to 16TB, 4 USB2.0> Multiple network monitoring: Web viewer, CMS(DSS/PSS) & DMSSTechnical Specifications ModelDH-DVR0404HF ... , Backup selection, Digital zoomBackup ModeUSB Device / eSATA Device / Internal SATA burner/ NetworkNetworkEthernetRJ-45 port (10/100M/1000M)Network FunctionsHTTP, IPv4/IPv6, TCP/IP ... 2U, 440mm×460mm×89mmWeight6.5KG(without HDD)Application System 16CH Network DVR