universal micro all in one memory card reader usb external sd sdhc mini micro m2 mmc xd cf read and write flash memory card

features: 1.support usb v2.0 full speed specification and usb device class. 2.read and write flash memory card. 3.plug - and - play, swappable. 4.a convenient and fast data exchange device for mp3, digital camera etc. 5.usb interface. 6.usb powered, no external power supply in needed. 7.power led indicator. 8.compact design for mobile user. 9.led power/status indicator.