MobiDrive

20gb free simultaneous backup program.  If you want, you can back up 2TB of data in the paid section.
 
 You can upload 200mb files at the same time.  The file you delete is stored for 30 days.

MobiDrive gives you up to 1000 GB of secure cloud storage on Windows PC and a rich library of management features. Sync and organize your files and folders with a handy desktop widget, advanced integration with other MobiSystems apps, and cross-platform support for MobiDrive apps on other platforms.