Hi @Jkyong 

Thanks for reaching out to TP-Link Business Forums.

You can refer to this calculate tool to confirm how much bandwidth the cameras may need when in usage: VIGI Calculation Tools-Bandwidth Calculation

Theoretically and under ideal conditions  (clean spectrum, strong signal, and minimal interference), a single AP CPE510 can support up to 8 units of 4MP cameras (H.264) and up to 10 units of 4MP cameras (H.265). However, in real-world deployments, overall performance is affected by multiple factors, including wireless interference, signal quality, airtime contention in PTMP scenarios, and protocol overhead. Thus, the actual data may vary depending on your network environment.

Also, please note that the above figures refer specifically to the AP (Access Point) CPE.

For Client-side CPEs, they are typically more impacted by environmental interference and signal variation. Their effective throughput may be significantly lower, sometimes only around 50% (or less) of the AP’s capacity. As a result, the number of cameras supported per Client CPE may be reduced accordingly.

If you want to deploy the devices in such case, we would recommend changing the channel to 5180 which  typically provide better performance and less interference in actual usage.