This video talks about how to add more cameras to a POE NVR. Normally when we have a POE NVR and all the ports are occupied, we would need to purchase a new device in order to add more cameras. An extra NVR or purchasing an NVR with more ports is the easiest way but not efficient. We can use an add POE switch to the system, and the POE switch would provide several ports for us.
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