Ring Alarm Pro - Max number of cameras

Hello, is there a limit to the number of ONVIF cameras i can add to Ring alarm Pro ? We currently have 18 4K cameras along with 5 Ring wireless cameras around our property Will the pro base station support them all ? They currently run H265+ protocol, but i believe i can switch them to H.264 is needed to work with the Ring PRO Need a single app for notifications. Our NVR generates too many false notifications from trees, birds... Still plan on keeping our NVR for long term 4K video storage, if needed thanks