5GB additional Dropbox storage to beta users
Now Dropbox is offering extra 5GB of free space.
Conditions to get extra 5GB:
1.Download and install the latest experimental Dropbox client.
2.Use Dropbox’s new photo import feature.
Users get 500MB of free space on first photo import. For every 500MB of photos and videos automatically uploaded, you’ll receive another 500MB space, up to 5GB total.
Refer this link for more info