I want to use a mouse and keyboard on my HTC One M8. I have an OTG cable with an non-powered 4-port usb hub. The mouse draws 5v and 100mA and the keyboard draws 5v and 50mA. Would I be drawing too much power from my phone by using both devices simultaneously? Is that even possible? If there even is a power limit, what would happen if I exceeded it? Would it damage the phone?