I currently have four raspberry pi's connected via ethernet to each other. They are currently powered by four 1A power adapters which works fine. But I was wondering if there are any devices out there that can supply enough power through usb to power the devices from a single power source. All the usb hubs I've found so far only provide a maximum of 500mA, which isn't enough.
If anyone has any links to something on amazon or ebay, that would be excellent.
Although for the moment I only need 4 high power usb ports, in the future I will be introducing more pi's to the system. So if I can add more devices per hub, then that's even better