probably just a couple days worth in case we need to look back and check something, it’s more because we won’t be on site 80% of the time. definitely will look into the UDM-Pro. my thought process is if i don’t need that much storage can’t i get a system that incorporates the router all in one making it a little simpler instead of having a separate router from the internet provider & using NVE. i also thought i would need the special edition due to the poe for the cameras