I ordered the power supply because it is intended to provide above average current with 1.2A. However, so are my Raspberry Pi USB wireless keyboard only 4.6x volts, while it with a Samsung Galaxy S2 power supply where only 0.7 A stand off 4.85 volts. Here was also read that loads slower than the original power supply, but specify the mostly 1A (1000mA). That with the 1.2A I doubt therefore.