Samsung SRD-873D, 4TB, Black, H.264, NTSC : 928 x 480, 704 x 480 PAL : 928 x 576, 704 x 576, 8 channels, RTP, RTSP, HTTP, CGI, NTSC, PAL Samsung SRD-873D, 4TB. Product colour: Black, Video compression formats: H.264, Playback resolutions supported: NTSC : 928 x 480, 704 x 480 PAL : 928 x 576, 704 x 576. Ethernet interface type: Gigabit Ethernet, Supported network protocols: TCP/IP, DHCP, PPPoE, SMTP, NTP, HTTP, DDNS, RTP, RTSP, SNMP. HDD interface: Serial ATA. Optical drive type: DVD-RW. Power requirements: 100-240 VAC, 50-60Hz, Power consumption (max): 60 W