Notice: We will ship out this black DVR or silvery DVR system randomly, the appearance between them is a little different but function remains the same. Please kindly understand that, thank you. Overview This surveillance camera monitoring system provides everything you need to protect your home or business. The system includes an 4 channel H.264 DVR with 4 day/night cameras with 500GB hard drive, allowing for the simultaneous viewing and recording of 4 video streams locally, and remote access over the Internet or Smartphone. DVR Feature * Video Input / Output: BNC 4 CH /BNC 1 CH * Audio Input / Output: RCA 4 CH /BNC 1 CH * Display: 240 fps @ D1(704*480) more »