Check the listing for details. R4 3DS Revolution flashcart T-Flash USB memory card reader.. Condition: Open box. Listed at 14.11 USD. opened box but never used Experience the convenience of transferring data between your computer and 3DS with the R4 3DS Revolution flashcart T-Flash USB memory card reader. This versatile card reader supports SD memory cards, allowing you to load and unload your gaming cartridges with ease. The USB connectivity ensures a quick and efficient link to your computer, perfect for updating your handheld's firmware or storing backup files. Crafted by REVOLUTION FOR DS, a brand synonymous with quality and reliability in the gaming community, this card reader is an essential accessory for any 3DS enthusiast. Its compact and durable design makes it an ideal travel companion, ensuring you can keep your gaming experience uninterrupted wherever you go.