Box is an online drive or storage place with lots of extra features which can be utilised by tutors and students alike.
Providing a secure storage area means that files can be accessed from anywhere and a wide range of file types can be handled, including music, video and more.
Folders allow you to organise files. This could be simply to reflect an arrangement you prefer that you have on your local hard drive or it might be that you wish to share one folder with some people and another with others. This control over access is simple in this application.