Hi Eduardo,
it’s already explained in the article, but since you ask it’s probably not clear enough. Cubbit was designed to have an intrinsic surplus of storage. Each Cubbit Cell indeed comes with double the physical capacity of what is made available to the user. The Cubbit Cell 1TB, for example, has 2TB of physical storage inside, half of which is available to the user as cloud space. Part of the rest (25%) is used for the redundancy, that is to say, to ensure that every file uploaded on Cubbit is automatically backed up inside the network and always accessible to its owner, perfectly safe and reliable no matter what. Cubbit leverages the remaining 25% of storage to provide advanced web services to businesses or professional users, in order to cover the costs and be able to maintain the network free for the final user, even in the long run. These advanced web services to business and professional users, in other words, are the source of the recurring income I was talking about in the post.