OS X Mountain Lion: The world’s most advanced desktop operating system.

Maximum operating altitude: 10,000 feet.

Relative humidity: 0% to 90% noncondensing.

Operating temperature: 50° to 95° F (10° to 35° C).

60W MagSafe 2 Power Adapter with cable management system MagSafe 2 power port.

Built-in 74-watt-hour lithium-polymer battery.

Multi-Touch trackpad for precise cursor control supports inertial scrolling, pinch, rotate, swipe, three-finger swipe, four-finger swipe, tap, double-tap, and drag capabilities.

Full-size backlit keyboard with 78 (U.S.) or 79 (ISO) keys, including 12 function keys and 4 arrow keys (inverted “T” arrangement) with ambient light sensor.Support for Apple iPhone headset with microphone.Headphone/optical digital audio output (minijack).Apple Thunderbolt to Gigabit Ethernet Adapter (sold separately)Ĩ02.11n Wi-Fi wireless networking 3 IEEE 802.11a/b/g compatible.Apple Thunderbolt to FireWire Adapter (sold separately).Dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter (sold separately).VGA output using Mini DisplayPort to VGA Adapter (sold separately).DVI output using Mini DisplayPort to DVI Adapter (sold separately).

Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on up to two external displays, at millions of colors.

Configurable to 2.9GHz dual-core Intel Core i7 (Turbo Boost up to 3.6GHz) with 4MB shared 元 cache.Ĭonfigurable to 256GB, 512GB, or 768GB flash storage.Ĭonfigurable to 512GB or 768GB flash storage.

Scaled resolutions: 1680 by 1050, 1440 by 900, and 1024 by 640 pixelsĢ.5GHz dual-core Intel Core i5 processor (Turbo Boost up to 3.1GHz) with 3MB shared 元 cache.

2560-by-1600 native resolution at 227 pixels per inch with support for millions of colors.

Retina display: 13.3-inch (diagonal) LED-backlit display with IPS technology.

Upgrade macbook pro late 2012