The SanDisk SDDR-C531-GNANN is a multifunctional card reader with memory, USB A, USB 3.0, and SD/SDHC/SDXC. This card reader is manufactured in a sleek black design. Its memory feature allows you to save and manage your photos, videos, and other important data with ease. You can connect both USB A and USB 3.0 for read and write speeds up to 10X faster than USB 2.0 as well as transfer large files quickly and easily. Furthermore, you can use the SD, SDHC, and SDXC ports to transfer photos, music, videos, and other media directly from your phone or camera to your computer. This card reader is compatible with most popular devices and file formats.