You have four cloud-based file storage options...
1. DS-Filestore
3GB personal file store, integrated with with your University Desktop Services account:
Get started with your DS-Filestore >
2. OneDrive for Business
A free 5TB cloud-based file store, integrated with the Office 365 apps:
Get started with OneDrive for Business >
3. Google Drive
A free 20GB file store that is part of the Google Workspace for Education apps:
Get started with Google Drive >
4. Dropbox Business (subscription required)
Unlimited storage at a discounted rate when purchased through the University and linked to your @cam email address (you can get a rebate if you already have a personal subscription):