EasyAcc USB 2.0 Card Reader A 3-in-1 card reader, hub, and OTG device that is small but powerful. Two card slots combined, can read 7 different types of memory cards: SD, SD-HC, SD-XC, MMC, RS-MMC, microSD, and miniSD (adapter for miniSD cards not included). With a device that is compatible with so many types of digital storage media, you can share your life with your friends and family easily. Adds 3 USB ports, supports hot swapping, and is a plug and play device. Also compatible with USB 1.1, and no drivers are required for Windows XP/Vista/7/8 and Mac OS X 10.2 and above. Worry-free after-sales service: EasyAcc provides a 18-month warranty and free lifetime technical support globally.