1,USB 2.0 All-in-one Card Reader 2,Support SD/MMC/SDHC/TF/Micro SD ... ,Working temperature: -20 to 65c All-in-one Card Reader with Plug-and-play Function USB (universal serial bus) ... to 480MbpsDraws power directly from USB portSupports: CF, CF type II, micro drive, SM, SD, MMC, SD,mini SD, ... flash, micro SDSupports 4 different cards can be read at the same time, it can exchange the data between 4 cards ...