As every IP camera provides a different image to the NVR and also requires different bandwidth, when the IP cameras are connected, you can check the IP camera connection status in on the NVR web page to adjust the IP camera configuration. The maximum aggregated bandwidth for the NVR-3280 is 200Mbps (including incoming/outgoing bandwidth). When the bandwidth is over 200Mbps, recording frame rate will be affected. When this situation happens, you are required to configure the connected IP camera settings on the NVR to reduce the system loading.