Since HipChat Server runs on your own virtual machine, the only file storage limitation is how much you provision it with.
And here's the pricing structure for HipChat Server:
And some more documentation regarding deploying HipChat Server:
...from the beginning. We have built up a lot of content in HipChat, with it being a core tool in our distributed company model. While it is true that we didn’t need to move to Slack immediately, we felt it...
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