A Slim Multi Card Reader for SM, xD Picture Card, SD, SDHC, SDXC, miniSD, miniSDHC, MS, M2, MS Duo, MS PRO, MS PRO Duo, MagicGate MS, MS Micro, MS PRO-HG, MS PRO-HG Duo, CF, MicroDrive, MMC, and RS-MMC memory cards. Blue all-in-one external multi-card reader/writer for fast access to most common media cards. Please note: 4M, 2M, 1M cards and 5V cards cannot be read. Compatible system: Windows 10, 8, 7, Vista, XP, 2000 or above and Mac OS X Version 10.2, 10.3, 10.4, 10.5, 10.6 or above. Quick and easy transfer of data, music, pictures directly from a memory card to a PC or laptop. No need for an extra connection cable or additional driver installation. Ideal for office work, travel, and business use. Drive Letter Recognition Software provided for easy identification of each media on your PC. Four card slots can work simultaneously with high-speed and stable performance. Simple plug-and-play operation: USB powered, no external power supply needed. 23-inch connecting cable with USB 2.0 connection for fast data transfer (backward compatible with USB 1.1). Pocket-sized design for easy portability.