Finally got all the parts for a robot im making... Fired up the battery, connected raspberry pi & arduino to my battery pack. All working fine. Connect USB hub to raspberry pi (WHICH IS LABELED WORKS WITH RASPBERRY PI) fire it up. Connect wifi & bluetooth adapter & arduino firewire. BAM smoke everywhere, absolute rubbish. Never ever buy a dynamode USB hub if you dont want a fire to start in your house and you actually want to keep all your devices. Currently filing a claim via amazon.