Why we need this wifi antenna extension cable: when the nvr is far away from the cameras and cameras constantly disconnect with wifi, or when signal is badly received, this is the right antenna booster to use.
How to install it: replace the wifi antenna of the cameras with this extension cable. Usually NVR is placed on 1st floor and cameras high up on the wall on different dimensions. At this time, you can shorten the distance of the cameras and the NVR by this cable and bring the cameras closer to the NVR. Keep the base fixed anywhere closer to NVR.
Advantage: Keep wifi signal stable and constant. Get rid of bad signal and disconnection. Ensure fluent and smooth video playing. Enlarge the distance against walls.
While you may not need this if your cameras are already well received and signal is good enough.