U of I Box, Upload, file size limit
Box will not allow you to upload a single large file.
The current max file size for U of I Box accounts is 15 GB. The file size limit is set by Box and can only be changed when Box rolls out a service-wide upgrade.
To confirm the file size for your account, log into Box. Click on the
arrow next to your name in the upper right-hand corner and choose Account Settings > Account. Your Max file size is listed under Account Information.