Tech 1 Portable USB 2.0 4 Card Slot Card Reader 4 separate card slots USB 2.0, 1.1 hi-speed certified PC & MAC compatible USB self powered - Plug and play Supported cards: Memory stick micro(M2), memory stick pro & duo, SD, SD-HC, MMCRS-MMC, RS-MMC DV, MMC Plus, MMC mobile, micro SD