Uniview NVR301-08S3 Video input channels: 8 channels, Maximum resolution: 3840 x 2160 pixels, Number of simultaneously playback channels: 8 channels. Max. Storage drive capacity: 8 TB, HDD interface: Serial ATA. Ethernet LAN data rates: 10,100 Mbit/s, Supported network protocols: TCP/IP, P2P, UPnP, NTP, DHCP, PPPoE, HTTP, HTTPS, DNS, DDNS, SMTP, RTSP. Product colour: Black. Power consumption (standard mode): 5 W, Output voltage: 12 V