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The 2016 MacBook Pro introduced the OLED Touch Bar, replacing function keys with context-aware shortcuts and integrated Touch ID for login/Apple Pay. Available in 13-inch and 15-inch models, this redesign featured four Thunderbolt 3 ports, a brighter Retina display, and a thinner chassis with a "butterfly" keyboard. [1, 2, 3, 4, 5]
Processor & Graphics: 13-inch models used Dual-core Intel Core i5
Display: Improved Retina display with 2560-by-1600 (13-inch) or 2880-by-1800 (15-inch) resolution.Ports: Four USB-C (Thunderbolt 3) ports and a 3.5mm headphone jack