SABRENT SuperSpeed 2 Slot USB 3.0 Flash Memory Card Reader for Windows, Mac, Linux, and Certain Android Systems Supports SD, SDHC, SDXC, MMC/MicroSD, T Flash Black (CR-UMSS) - SuperSpeed USB 3.0 for maximum performance. Backward compatible with USB 2.0 hosts. - Powers via USB port, no additional power supply needed. - Plug-n-Play, no installation required. - Supports SD , SDHC , SDXC , MMC / MicroSD and T-Flash.