Dahua NVR616-128-4KS2 128 Channel NVRDahua NVR616-128-4KS2 is a Dahua Ultra series network recorder. The Ultra Series recorders offer the best performance and highest quality.Features:64/128 Channel 3U 16HDDs Ultra series Network Video RecorderNew 4.0 user interface16-channel decoding @1080p (30 fps..