This 16 channel surveillance system DVR supports an amazing 480 frames per second recording. 480 FPS means real time recording. This DVR supports internet viewing of all cameras and recorded video playback. The DVR also supports simultaneously operation of live viewing, recording, playback, backup, network access and coping of surveillance video. This DVR comes standard with a 500gb hard drive and a DVD burner. Users can access surveillance video from over the Internet using Microsoft Internet Explorer. Central monitoring software also comes with this unit which allows you to access cameras from multiple DVRs. Pick and choose which cameras you want on a single screen from multiple surveillance systems / locations. This surveillance DVR supports the ability for up to 5 users to login remotely over the Internet at the same time. DVR includes rack mount brackets.