multi in one card reader 1.MMC/ T-Flash / Micro SD/M2 all free transfer card 2.Mini shape 3.Multi in one multi in one card readerMMC/ T-Flash / Micro ... SD/M2 all free transfer cardMini shape, the ridge into the USB cable without external power cord, easy to carryStandard USB2.0 interface ... / MS PRO DUO / T-FLASH / M2, etc.Support USB 2.0 interface, plug and play!Support System: WINDOWS XP, VISTA, OS ...