It employed Intel's Broadwell Core M processors at a TDP of around 4.5 Watt to allow for a fanless design and a logic board that is much smaller than in previous MacBooks.
The MacBook was announced at an Apple special event on March 9, 2015, and was released a month later on April 10. It was released in 2015, revised in 2017, and discontinued in July 2019, a year after the release of the MacBook Air with Retina display. It only had a single USB-C port, used for both power and data, as well as a 3.5mm headphone jack. It was more compact than any other notebook in the MacBook family at the time and included a Retina display, fanless design, a Butterfly keyboard with lower key travel. The 12-inch MacBook (also called the Retina MacBook, officially marketed as the new MacBook) is a discontinued Mac laptop made by Apple Inc., which sat between the MacBook Air and MacBook Pro in Apple's laptop lineup.