What are the bandwidth limits on my links? Can I purchase more?
Dropbox doesn’t offer a way to buy more bandwidth allowance for your account.
To prevent abuse, Dropbox accounts have the following limits:
Basic accounts and accounts on a trial of Dropbox Business: 20 GB of bandwidth and 100,000 downloads per day
Plus, Family, and Professional accounts: 400 GB and unlimited downloads per day
Dropbox Business Standard accounts: 1 TB and unlimited downloads per day
Dropbox Business Advanced and Enterprise accounts: 4 TB and unlimited downloads per day