The GB USB smart card 64M is a convenient device that allows you to write game ROMs for GB/GBC/GBA and connect to a PC. - Model: GB USB smart card 64M - Compatible consoles: GB / GBC / GBA - Functions: Game ROM writing, PC connection - Features: Replaceable battery for SRAM - Supported OS: Windows XP / Vista / 7 Thank you for viewing. We would like to do business with those who know how to use this product or are able to research it themselves.