This is a cloud storage service with up to 1 TB of space you can use by adding the Cloud Option.

By adding your Dropbox personal account to the Dropbox Business team (Cloud Option DJ team), you can use up to 1 TB worth of space on the cloud storage.

Using the Cloud Library Sync enables you to upload and save music and video files to the cloud storage.

Music files already saved to the cloud storage with your Dropbox personal account can be used continually by moving your data files to the Cloud Option DJ team.

Find out more details here.