Efficient engineering dramatically reduced the size of the logic board and eliminated the need for a fan. Engineering the thinnest Retina display ever on a Mac meant refining it at every level. The new MacBook is the world’s most energy-efficient notebook. It gets all-day battery life. USB-C gives you five ports in one, this new connectivity standard gives you power, USB data transfer, DisplayPort, HDMI, and VGA capabilities. With the new MacBook, Apple has engineered a full-size experience into the lightest and most compact Mac notebook ever. That meant reimagining every element to make it not only lighter and thinner but also better. The result is more than just a new notebook. It’s the future of the notebook. A full-size keyboard is essential for a great notebook experience. But to fit one into the elegantly thin new MacBook, they had to completely rethink how a keyboard is engineered and constructed. To create the new keyboard, they redesigned each key and its underlying mechanism — not only making the whole keyboard much thinner, but also allowing for more comfortable, precise, and responsive typing that just feels right.