Not OP but he most probably meant lease-to-own. In my experience it's a financing model that spans the equipment's economical lifetime. Let's say 3 years for a server box. In the end of the contract you either pay the last instalment, which is bigger (5x-10x) than usual and keep it, or you return the equipment and get a new one.

There are many variations of this scheme but that's more or less the idea.