I'm looking for a cheap Development board (arduino or any China clone) with on-chip USB support.
The board should enumerate as Mass Storage Device with FAT95 filesystem. The host should recognize the Device without additional drivers.
The Arduino Micro (atmega32u4) seems to support up to 12 MB/s. I need at least 50MB/s.
The Idea is to use the board as USB Stick with a custom write function.