The Link Depot USB 2.0 Expandable Pen Drive with SD/MMC Card Reader Pen allows you to flexibly transform your supported flash memory card to a portable pen drive. You can use this SD MMC card reader to transform the flash memory card to pen drive and can read and write on it easily. The USB memory card reader supports SD/MMC/Mini SD/RS MMC/T-Flash memory cards and has a special hot swappable feature. This feature enables you to change to a different flash memory card easily. The Link Depot USB 2.0 Expandable Pen Drive with SD/MMC Card Reader Pen can be used with USB 2.0 and offers secure data transfer.