Reolink NVS16 - 16-Channel PoE NVR for 24/7 Recording. Support up to 16MP. 4TB HDD Built-in. Up to 12TB Storage Capacity. Video input channels: 16 channels. Maximum resolution: 3840 x 2160 pixels. Number of simultaneously playbacked channels: 4 channels. HDD capacity: 4 TB. Maximum storage capacity: 12 TB. HDD interface: SATA. Ethernet LAN data rates: 10.100.1000 Mbit/s. Networking standards: IEEE 802.3af. IEEE 802.3at. Supported network protocols: HTTPS. TCP/IP. UDP. DHCP. P2P. UPNP. RTMP. SMTP. SSL/TLS. DNS. DDNS. NTP. Product colour: Black. Power consumption (typical): 10 W. Output voltage: 48 - 54 V. Power over Ethernet (PoE) power per port: 25 W