... Video Recorder >Up to 16 channel@D1, 8 channel@720P, 4 channel@1080P realtime recording KD-D1504N: 4 channel@D1, ... can support HDMI, VGA, USB2.0 and 2 HDDs.KD-D1516N:16 channel@D1, 8 channel@720P, 4 channel@1080P ... , VGA, USB2.0 and 2 HDDs> 4/8/16 channel 1U standalone Network Video Recorder> Dual-core CPU ... H.264/MPEG-4 dual codec decoding> Up to 16 channel@D1, 8 channel@720P, 4 channel@1080P realtime ...