Note: Frames per second must be per camera. If your DVR states it can record 120fps and you have 4 cameras, divide 120 by 4 to get 30fps per camera.
Also, 2-3 frames per second (fps) will capture activity, but not in real time.
1. Days of Storage
2. Number of Cameras
3. FPS per Camera
4. Hours per Day
5. Days per Week
Results