The Dynamo Green
The concept behind this Dynamo Green keyboard is that it will help lower your monthly electricity bill. But the catch is that you have to keep typing. When you type, you’re harnessing the power of kinetic energy with which to power the computer thereby enabling you to save energy. That’s the premise behind it. However, I don’t know that you can save a lot of energy this way because you’d have to do lots and lots of typing to generate enough energy to power a PC with your typing alone. But the intentions are good.