Monoprice OTG Card Reader for Android Smartphones (microSD/SD / USB) Plug and play, no drivers or apps required | USB 2.0 complkiant Includes both SD and microSD card slots Supports SD, SDHC, SDXC, microSD, microSDHC, and microSDXC cards Downstream USB port can be used for USB storage devices, such as a flash drive, or USB input devices, such as a keyboard or mouse Includes micro USB port for optional external power