... 4,1CH simulation BNC/VGA video outpu 4CH 720P H.264 NVR standalone H,264 NVR standalone1, 4CH digital video input,4CH 720P recording 2, ... adopt standard H.264 compression 3, 1CH simulation BNC/VGA video output, ... WEB Server,convenient to controlling management on the wall4CH 720P H.264 NVR standalone 4CH 720P H.264 NVR standalone