Introduced Apple's aluminum unibody construction and the first glass multi-touch trackpad. This chassis stayed in Apple's lineup essentially unchanged for four years, so screen, battery, and keyboard parts are shared across the whole 2008-2012 span, including the final refresh that kept the optical drive and a removable battery.
| Display | 15.4" LED-backlit LCD, 1440x900 (1680x1050 hi-res option) |
| Chip | Intel Core 2 Duo / Core i5 / Core i7 (2008-2012 revisions) |
| Storage | 250GB-750GB HDD, SSD option on later revisions |
| Battery | ~77 Wh (removable until 2009, built-in from mid-2009) |
| Optical Drive | SuperDrive DVD burner |