Wall Adapter Power Supply 7.5VDC 1A (American Standard) Shipping:4-6 Days We specifically chose SYV-50-3 cable

We specifically chose SYV-50-3 cable over RG58 (46db per 100m) for its good balance of low loss and high flexibility

This is the recommended method

Since the MODE pin has an internal pull-down resistor

It's got everything you want and more:

Wall Adapter Power Supply 7.5VDC 1A (American Standard) Shipping:4-6 Days We specifically chose SYV-50-3 cableThis is a 7. 5V wall adapter. It is not commonly available in the market. The best part of this adapter is that it allows Arduino project to run independently. For some projects need motor or servo, 5V do not have sufficient power, 12V is kind of over supply that may cause potential overheated problem. 7. 5V is just the right voltage for those projects, provides safe and enough power. It comes with a DC2. 1 connector which is Arduino power jack