High quality, brand new, micro USB cable that I modified. It enables my Google Samsung Galaxy Nexus and Nexus 7 androids to fast charge at the (AC) rate. This should work for any android smartphone or tablet with a micro USB connector.
These cables unlock the full charging potential of 1amp and 2.1amp usb chargers, so that Android devices can request as much power as they can get.
Cables available in 3ft, 6ft versions at:
http://search.ebay.com/?sass=nobleman01&ht=-1