The 6 in 1 card reader can be successfully used for reading/writing data to SD/micro SD/MMC memory cards. The card reader works with the following types of memory cards, with no additional adapters required:SD, SDHC, SDXC MMC/MMCplus cards In addition, the card reader supports micro SD/micro SDHC, mini SD/mini SDHC & RS MMC/MMC mobile memory cards with an SD/MMC adapter (not included) System Requirements: Windows ME/2000/XP/ Vista/7/ Mac OS 10.x