CAPTOR CP-D8416AM16 CH 1080P AHD DVR, 4/1 Audio in/out, HDMI & VGA Video Out Support AHD, Analog and IP Video input AHD and Analog input are self-adaptive Third-party IP cameras supported with ONVIF V2.4 conformance Support 4 SATA HDDs, each HDD is up to 6TB, 2 USBZD 8 channel synchronous playback Simultaneous HDMI and VGA output. the resolution is up to 1080P Support free DDNS. e.g. HDOCTVDDNS Support UPnP. NTPt DHCP. PPPoEt RTSP Support mobile app access Up to 500 meters long distance stable and high quality 1080P video transmission