This new accessory for the Nintendo DS Lite lets you add both rumble features and additional storage in a single device.
The SuperCard Lite RUMBLE is a 3rd-party module that adds rumble to games that support the feature as well as providing a MicroSD memory card slot for storage of movies, music, game saves and e-books. The cartridge plugs into the DS Lite’s GBA slot, and runs about $34 (not including a MicroSD card).
