... 8pcs HDD 16 channel DVRSupport 16 channel video inputSupport 1080p,720p,D1,CIF,QCIF,support ... simultaneously Support High Definition recording and 4 channel video playback simultaneouslyKindly GUI interfaceSupport 8pcs HDDSupport picture ... self-adjustable Ethernet InterfaceUSB Interface2×USB 2.0NetworkProtocolTCP/IP,UDP,RTP/RTCP/RTSP,FTP,Telnet,NTP, ... ) H.264 16 Channel network digital video server