The nes classic mini has 512mb of storage, of which 200mb is used, leaving you with about 300mb of free storage to add more games. Links to the software and hardware below - takes about 10 minutes. 08-05-2019 the nes classic is terrific for what it is, but it's limited. The nes classic edition and super nes classic edition systems are each powered by a usb cable type a to micro b and a usb ac adapter output, 5v/1a. SNES Classic Mini Hakchi 2 2.0.20.15 Tutorial.