Transfer files from your memory cards faster than ever before. Multi-functional reader supports SD and microSD card formats (no adapter required). Offers plug-and-play functionality for Windows and Mac OS via built-in USB connector. The USB 3.0 Pocket Card Reader is ideal for high capacity memory cards and large image / video files.Supports a variety of memory card formats without an adapter: Secure Digital (SD) Secure Digital High Capacity (SDHC) Secure Digital Extended Capacity (SDXC) miniSD High Capacity miniSD (miniSDHC) microSD microSD High Capacity (microSDHC) microSD Extended Capacity (microSDXC) Modern compact design connects directly to USB port no extra cables required SB 3.0 connectivity for high speed data transfer and optimum performance. Limited One Year Warranty.