How do I power a Twin Industries TW-E41-102B?
The breadboard itself doesn't need powering, since it is nothing more than a collection of passive conductors. It is quite common though to connect the two sets of parallel "power rails" above and below the main area of the breadboard (red to red and blue to blue) and supplying power via them, optionally connecting them to the binding posts if power will be supplied from a banana plug.