It says it works for 7100 series, but it does not work on my 7105T. It powers on, shows a red light, but when I plug it into my phone the little lightning bolt on the phone screen (means charging) shows up for about 5 seconds, and then disappears.I can't tell if the product is DOA, or if it just doesn't work on my 7105T. In either case, I would avoid this product and stick with authentic RIM accessories. I learned my lesson on this one...