Maximum operating altitude: 10,000 feet.

Relative humidity: 0% to 90% noncondensing.

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

85W MagSafe Power Adapter with cable management system MagSafe power port.

Built-in 77.5-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 remote and microphone.802.11n Wi-Fi wireless networking 3 IEEE 802.11a/b/g compatible.

HDMI audio and video output using third-party Mini DisplayPort to HDMI 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 an external display, both at millions of colors.

NVIDIA GeForce GT 650M with 512MB of GDDR5 memory (15-inch 2.3GHz configuration) or NVIDIA GeForce GT 650M with 1GB of GDDR5 memory (15-inch 2.6GHz configuration) and automatic graphics switching.2.6GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.6GHz) with 6MB 元 cacheĬonfigurable to 2.7GHz quad-core Intel Core i7 (Turbo Boost up to 3.7GHz) with 8MB 元 cache.2.3GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.3GHz) with 6MB 元 cache.Configurable to 1680-by-1050 high-resolution glossy or antiglare display.15.4-inch (diagonal) LED-backlit glossy or optional antiglare widescreen display with support for millions of colors.

Apple macbook pro a1286 with speakrs