direct current

Imagine one external power adapter that works for all DC-powered electronic devices. Now imagine that as these devices are replaced and recycled, the upgraded hardware continues to use the same external power supply. How much energy, material, and landfill space would be saved?

According to Green Plug, 737 million external power supplies will be manufactured for the US alone in 2008. 434 million obsolete and incompatible adapters will be retired, with only 55 million of these being recycled. Green Plug enabled power hubs