Works with standard (dual 5/3.3V) and 3.3V-only (for example, Pro Arduino) boards.
Complies with USB Specification Revision 2.0 (Full-Speed 12Mbps Peripheral, Full-/Low-Speed 12Mbps/1.5Mbps Host)
Compatible with Mass storage devices, such as USB sticks, memory card readers, external hard drives (FAT32 Type File System – Mega Arduino only).The following device classes are currently supported by the shield:
HID devices, such as keyboards, mice, joysticks, etc.
game controllers – Sony PS3, Nintendo Wii, Xbox360
USB to serial converters – FTDI, PL-2303, ACM, as well as certain cell phones and GPS receivers
ADK-capable Android phones and tables
Digital cameras – Canon EOS, Powershot, Nikon DSLRs and P&S, as well as generic PTP
Mass storage devices, such as USB sticks, memory card readers, external hard drives