Super Fast USB 2.0 12-in-1 SDHC/SD/Mini SDHC/MMC/RS-MMC Card Reader Writer Up To 150X Super Fast on both reading and writing (up to 32 GB cards). Reading speed up to 150X Plug-n-Play with Windows, Mac OS X, and Linux Low power consumption, just powered by USB connection Compliant with SD Spec v2.0/v1.1/v1.0 Light weight portable