New old stock soviet clone of ZX spectrum. Sealed box!Do not miss a rare chance to deprive this rare thing of virginity;)Able to upgrade RAM to 128/256/512/1024 (pentagon schema). Able to connected with fdd beta disk controller and other external devices by system bus connector. The computer has an excellent extended reedswitch keyboard.The mainboard has a high-quality fiberglass base.Power unit has additional 12v that able be used for power supply beta disk chip( FD1793).