Model Years: Early 2015, Early 2016, Mid 2017

Storage: 256GB to 512GB (SSD)

Initial OS: OS X 10.10.2 Yosemite (Early 2015)

Latest OS:
- macOS 11.7.10 Big Sur (Early 2015)
- macOS 12.7.6 Monterey (Early 2016)
- macOS 13.7.8 Ventura (Mid 2017)

Released: March 9 2015

Discontinued: July 9 2019

Processor:
- Intel Core M-5Y31 (Early 2015)
- Intel Core M-5Y51 (Early 2015)
- Intel Core M-5Y71 (Early 2015)
- Intel Core m3-6Y30 (Early 2016)
- Intel Core m5-6Y54 (Early 2016)
- Intel Core m7-6Y75 (Early 2016)
- Intel Core m3-7Y32 (Mid 2017)
- Intel Core i5-7Y54 (Mid 2017)
- Intel Core i7-7Y75 (Mid 2017)

Graphics:
- Intel HD Graphics 5300 (Early 2015)
- Intel HD Graphics 515 (Early 2016)
- Intel HD Graphics 615 (Mid 2017)

RAM Configurations Sold:
- 8GB LPDDR3 RAM 1600MHz (Early 2015)
- 8GB LPDDR3 RAM 1866MHz (Early 2016, Mid 2017)
- 16GB LPDDR3 RAM 1866MHz (Mid 2017)

Display Specifications:
- 12" LCD Display
- 2034 x 1440 display resolution at 226ppi
- Retina Display

New Features:
- Butterfly Keyboard
- USB C
- Passive Cooling
- Lack of ports compared to other Mac Laptops