Elecom MR-A001BK plugs directly to USB port. It supports SDXC up to 64GB, SD, SDHC up to 32GB as well as miniSD and microSD via adapter. It is priced at 1890 Yen.
The Elecom MR-A002, on the other hand, is a multi-in-one card reader with slots for SDXC, SD/SDHC, Memory Stick and microSD cards. It comes with a USB cable and is available in Silver and black. The price is 2415 Yen.