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.

Macbook pro 2012 external hard drive