Hikvision DS-7616NXI-K2. Video input channels: 16 channels, Maximum resolution: 3840 x 2160 pixels, Number of simultaneously playbacked channels: 16 channels. HDD capacity: 10 TB, Maximum storage capacity: 20 TB, HDD interface: SATA. Ethernet LAN data rates: 10,100,1000 Mbit/s, Supported network protocols: TCP/IP, DHCP, IPv4, IPv6, DNS, DDNS, NTP, RTSP, SADP, SMTP, SNMP, NFS, iSCSI, ISUP, UPnP, HTTP,.... Rack capacity: 1U, Product colour: Black. Power consumption (typical): 15 W, Output current: 3.3 A, Output voltage: 12 V