... standard:H.264 Main Profile resolution:1920*1080P HDMI Surveillance Digital video recorder----100%original factoryEmploy embedded processor and embedded Linux operating ... protocol, support PPPoE,DHCP,TCP/UDP protocol ect. Support 1,4,9,16 multi-screen pre-view, multi- preview resolution ... system can accomplish USB outlet and net remote upgrade.Support 2,4 or 8 pcs of SATA outlet,giant big HD Capacity ...