If you have a personal Dropbox account using a personal email address not associated with @uncc.edu, nothing will happen when you set up you UNC Charlotte Dropbox for Business account.
You can decide to connect your personal account to your UNC Charlotte Dropbox for Business account.
If you have a personal Dropbox account associated with the University's @uncc.edu email address, we recommend you change it to a non @uncc.edu email address by following this FAQ.
If you do not change your personal email address prior to setting up your UNC Charlotte Dropbox for Business account, follow this FAQ.