GW Security VD16CH16C50HDSDI 16 CH HD SDI DVR 1080P Security Camera System with 16 x 2.1 MP 1080P Varifocal Zoom Outdoor Cameras and 4 TB Hard Drive (Grey) HD-SDI 16 Channel DVR with (16) 2.1 MP 1080P 2.8~12mm Varifocal Manual Zoom Cameras, up to 164 feet Support mobile surveillance by phones with Android, Blackberry, WinCE, and iPhone ,HDMI & VGA Support IE browser to remote view and 1080P high resolution, digital Zoom 1X~10X (Button Control) Pre-installed 4TB Hard Drive and 1000 Feet RG59 Siamese Power/Video combo cables, Power Supply Kit 1 Year Warranty and Free Life Time Tech Support From U.S.A.