USB2.0 All in One Card Reader for SD,MMC,RS-. Features: Support SD,MMC,RS-MMC,MiniSD,T-Flash,MS/MS PRO,MS Duo/MS PRO Duo,M2. MiniSD, T-Flash, M2 use without adapter. *Easy plug, and play installatin Device. No external Power Needed. LED light clew read and write state. Slim size, easy for carry. Up to 480MB/s Accessibility speed. USB version 2.0 specification. Support Windows 98/98E/ME/2000/XP/Vista, Mac OS X 9.0 and Linux 2.4 later version.