Apple MacBook Air Intel Core i5 5th gen - (8 GB/256 GB SSD/OS X El Capitan) MMGG2HN/A  (13.3 inch, Silver)

Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 3840x2160 pixels on an external display, both at millions of colours Thunderbolt digital video output Native Mini DisplayPort output DVI output using Mini DisplayPort to DVI Adapter (sold separately) VGA output using Mini DisplayPort to VGA Adapter (sold separately) Dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter (sold separately) HDMI audio and video output using third-party Mini DisplayPort to HDMI Adapter (sold separately) Full-size backlit keyboard with 78 (US) or 79 (ISO) keys, including 12 function keys and 4 arrow keys (inverted “T” arrangement) with ambient light sensor 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. OS X El Capitan Engineered to take full advantage of your Mac hardware, OS X El Capitan is designed to be as easy to use as it is beautiful to look at. It comes with an amazing collection of apps you’ll use — and love — every day. And it enables your Mac and iOS devices to work wonderfully together.