Caution Loading USB devices no!

Who can read is a clear advantage ...
It is indeed in the item description, it has 4 inputs for the power supply, but a full-size USB port that serves as the power input is so unusual that at first I thought my unit was broken something, because the charger of course not to load a can use USB device.
When I read, however, replace it and still abutted no voltage at the USB port, I was skeptical and called customer service.
This made me very friendly to the item description carefully and told me that there are 4 inputs for power supply and one so obviously can not load USB devices so.
As an alternative was suggested to me the following, which owns the referenced function:
It also charges the camera battery twice as fast.
Unfortunately, there is this device not as a bundle with suitable batteries to replace the Canon LP-E8.
The batteries and the charger itself is otherwise super.
There is little difference in performance between the original battery and the Pantonas.
The charger charges the camera battery slower than the original charger, only about half as fast, but this is to cope with, since directly 2 batteries are included.

tl; dr:
- Full-size USB is an input, does not load any USB devices
- Alternative:
- At power supply via microUSB is the USB port voltage is present (connected internally)
- Batteries top
- Loads only half as fast as the original