Bower"s new Multi-Fit USB 3.0 line of high-speed USB 3.0 memory card readers offer remarkably fast transfers, making it simple and efficient for professional and amateur photographers alike to effortlessly copy a large number of images. The CRP3UNI provides a total of four slots, one CF, one SDHC/SDXC, one M2/microSD, and one MS PRO/XC/MS DUO. It supports all new card formats and is backwards compatible with USB 2.0. Its Plug-and-Play is user-friendly and it is supported by Mac OS and Windows ME, 2000, XP, Vista and 7.