I use herpstat 4's.
Herpstat 4's are great. Don't worry about the data port. I never use it.
The uploader isn't compatible with the herpstat 4, it is for the old herpstat 2 and herpstat pro, both are discontinued models.
The herpstat 4 currently doesn't have the ability to be monitored via the internet. Nor is it ability to do so really worth the extra complexity to do so.