The listing, USB and Card Reader has ended.
So this is a USB card reader designed for use with today's leading brand memory cards. Works with both Mac and PC. Cards supported by this device: memory stick micro (M2), memory stick pro & duo, SD, SD-HC, MMC RS-MMC, RS-MMC DV, MMC PlusMMC Mobile, Micro SD. Basically it can take any common memory card from your cameras to your phones and the device can read it so you can transfer the files to your computer. It's new never been used. Any questions please ask!