... :2ch D1,CIF network Video Server HK-DVS 404 Video Server,ip Video Server,network Video Server camera,surveillance equipment,security equipment ... local-hard-disk-storage D1 High Definition network video server, compatible to CIF and QCIF Support dual-bitstream output ... -connection if the network interrupts Support multi-user to access the DVS, multilevel user passwords management Specifications: 4CHS DVS ...