... , Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup selection, Digital zoomBackup ModeFlash drive/ USB HDD/ USB CD&DVD-RW / eSATA ... , SMTP, NTP, DHCP, DNS, IP Filter, PPPOE, DDNS, FTP, Alarm Server, IP Search(Support Dahua IP camera, DVR, NVS etc)Max ... , 375mm×285mm×50mm(W×D×H)Weight3.0KG(without HDD) digital video recorder camera dvr