Hanwha HRX-434. Product colour: Black, Maximum video resolution: 3840 x 2160 pixels, Video compression formats: H.264,H.265,M-JPEG. Video input channels: 4 channels. Ethernet interface type: Gigabit Ethernet, Supported network protocols: TCP/IP, UDP/IP, RTP (UDP), RTP (TCP), RTSP, NTP, HTTP, DHCP (Server, Client), PPPoE, SMTP, ICMP,.... HDD interface: SATA,SATA II,SATA III, Maximum HDD capacity: 6000 GB. Power supply type: AC, AC input voltage: 100 - 240 V, Power consumption (max): 22 W