Controlling 64 servo with arduino
I am assuming you want to control 64 servos. You could use a desktop/laptop power supply in combination with a step-down converter. Be warned, however, because you are going to need a beefy converter and power supply rated for around 175 watts. A desktop power supply wouldn't be a problem, but a laptop power supply may not be powerful enough (Or you might need multiple laptop power bricks if that's all you have for some reason...). However, keep in mind that you will need this kind of power if you are going to be constantly moving the servos.