usb card reader 1. usb 2.0 hi-speed card reader. 2. support M2,Micro SD,MMC,SD card. 3. Windows Vista,XP,2000,Mac OS X. USB Card ReaderUSB ... 2.0 Hi-Speed card reader.Fast USB ... 2.0 interface,480Mbps,Hot swappable support.SDHC,SD,MS,SD,T-Flash ...