Dahua Technology XVR5116H-4KL-I3/T. Product color: Black, Maximum video resolution: 3840 x 2160 pixels, Video compression formats: H.264, H.264+, H.265, H.265+. Video resolutions: 3840 x 2160,1920 x 1080,1280 x 720. Video input channels: 16 channels. Ethernet interface type: Fast Ethernet, Gigabit Ethernet, Supported network protocols: HTTP, HTTPS, TCP/IP, IPv4, IPv6, RTSP, UDP, NTP, DHCP, DNS, SMTP, UPnP, FTP, DDNS, SNMP, P2P, Ethernet LAN data rates: 10,100,1000 Mbit/s. Maximum HDD capacity: 16 TB