Fire alarm systems need to be inspected, tested and tagged annually. Testing must include all smoke detectors, manual pull devices, annunciators, visual indicators and strobes, control units, voice/alarm communications systems and any other devices that are a part of the fire alarm system.
it will need a port like this one to get more power from the usb since it only give 5.0 volts and this powered usb give up12 to 24 volts so you dont have that in a laptop and there is no way it could raise the power on the usb port in a laptop without damaging something .http://en.wikipedia.org/wiki/Powered_USB.
But the faster USB 3.1 port is significant because it will also be used to recharge the MacBook, as well as to connect to a wider variety of peripherals such as monitors, external storage drives, printers, and cameras. The MacBook is one of just a few devices to carry the new USB port. USB 3.1 can technically transfer data between the host computers and peripherals at maximum speeds of up to 10Gbps (gigabits per second), which is two times faster than the current USB 3.0.