... USB 2.0 transfer speed up to 480Mbps, four cardslots, you can read and write the following series flash memory ... cards:SD / SDHC / DV / T - Flash / a Micro SD / a micro ... , direct use, easy to operate plugComply with USB 2.0 transmission standard, and supports USB1.1transmission ... MMC, the Micro MMC, Mini SD, TF (T-FLASH/Micro SD), the MS / MS PRO, MS Duo, ...