NIGHT OWL C-841-A10 8 Channel 1080P DVR Security System, 4 HD 1080p Cameras 1 TB HDD (Black DVR/White Cam) 8 Channel Smart HD 1080p DVR Video Security System with 1 TB Pre-installed Security HDD, 4 x 1080p HD Cameras, Indoor/Outdoor Night Vision HD Cameras, Wide Viewing Angle Smart Device Integration, Night Owl Setup Wizard Backwards compatible with existing analog cameras Keep your original industry standard BNC Cables No computer needed for Playback Night Owl HD allows you to easily playback video from multiple cameras in one screen on your smart device