USB2.0MicroSD/TransFlashCardReaderWriter(Cardnotincluded)SmallestSize:3.2cmx1.5cmx0.6cmWorkasaUSDDiskDriveEasyPlugandPlayInstallationDeviceUSBBUSPowered,NoExternalPowerNeededBlueLEDOperatingLightIndicatorUpto18MB/sAccessibilitySpeedUSBVersion2.0SpecificationExcellentDataExchangeforMobilePhones,Computers,MP3/MP4Players,PDA,DigitalCamera,etc.NoDriverNeededforWindowsME/2000/XP/Vista,MacOSX9.0 above,andLinux2.4 aboveHowtouseInserttheMicroSD/TFcardintothecardreaderandplugitintothecomputerUSBport,thenuseitaspernormalUSBDiskDrivePackaging:1-USB2.0MicroSD/TransFlashCardReader/Writer2-phonestrap