eufy HomeBase 2 supports up to 16 cameras +16 entry sensors +15 motion sensors + 3 keypads. 

eufy HomeBase 3 supports up to 16 cameras + 34 other compatible devices.

However, it is highly recommended to set up devices on multiple HomeBases for optimal performance when more than 10 cameras need to be added to the eufy Security app.

If you have any further questions, please contact us for assistance.