[schollianmj]

only USB. the wall charger puts out 900Ma. the stock drivers in the phone, when it detects its connected to a USB port cripple the charging circut to only allow 500Ma to go through so as not to fry some USB ports. what this does is replace those drivers to allow the full 900Ma to flow through, thus fast charging... But it is the SAME voltage and amp load as you would get from the wall charger.