... 4CH digital video input 2,4CH 720P recording 3,H.264 compression 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, ... to controlling management on the wall4CH 720P H.264 NVR standalone 4CH 720P ...