Onboarding - new user

Hi 

We are considering moving from Dropbox to Box.com but we have an archive of 320 GB we would need to upload to bring with us.

Is there a way this can be done are we expected to upload hundreds of files individually to stay within the 5 GB upload limit. 

In general, each of our files is 3-4GB so this is a one-off requirement. 

Please advise if this can be done in some efficient way in one transfer / initial upload?