DeskTop Model This small free-to-install ATM is a specialized product that can be easily installed not only on a table, in the Lobby, and outside a store, but also in a limited space. Nano Cash 3000 Nano Cash 2000 Nano Cash Series The Nano Cash Series is a small ATM consisting of the POS- based system and the PC-based system. Compared to its size, the series is outstanding in performance and security, and not limited in terms of where it can be installed.