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 [White] (CR-UMSW) 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 Easy to take, use and install, no additional software installation required.