This is a SEGA Dreamcast Visual Memory Unit, a genuine SEGA product. You can never have enough memory cards, so you need a lot of them, otherwise you have to delete your saves to play. The save data is still there, so please initialize it before use. *However, since the main unit doesn't work, it can't be initialized. Since the operation has not been confirmed, it will be treated as a junk item. Please make offers for a price reduction in the comments. In that case, please let me know your desired purchase price. If you are interested, thank you.