USb Multi Card Reader for SD MMC SDHC Cards (Color May Vary) Support SD/MMC/SDHC/DV Mini SD/Micro SD/TF/M2/RS MMC/MS/MS DUO/MS PRO DUO*Support Windows XP,VISTA,OSX UO/MS PRO DUO*Support Windows XP, VISTA, OSX High Speed Data Transfer: USB2.0 high speed mode compatible per second 480Mbps. Browse and edit files through the card reader directly. Support handset, 3G, mobile phone. /Support hot plug. Support USB 1.1/2.0, Easy plug and play installation device. No external power needed.