So I recently got a G70 which I intended to power with my Voodoo PP2+. The "typical" PP2+ outlets (9v, 100mA) won't power the G70 up at all. I talked to Voodoo tech support and they sent a current doubler cable for me to try (it is a 2 into one cable where you combine 2 PP2+ outlets). Using it on either a 100mA + 250mA outlet or on the 2 250mA outlets the G70 powers up and works... However there is a buzz / hum. If you use the adapter that came with the G70 (the micro USB thing) there is no noise.