MacBook Air

Display : 13.3-inch (diagonal) high-resolution LED-backlit glossy widescreen display with support for millions of colors

Supported resolutions: 1440 x 900 (native), 1280 x 800, 1152 x 720,
1024 x 640 at 16:10 ratio and 1024 x 768 and 800 x 600 at 4:3 ratio.

Storage : 64BG // 256GB flash storage
Configurable to 512GB flash storage.

Processor
1.8GHz dual-core Intel Core i5 (Turbo Boost up to 2.8GHz) with 3MB shared L3 cache

Memory
4GB of 1600MHz DDR3L onboard memory
Configurable to 8GB.

Size and Weight
Height: 0.11-0.68 inch (0.3-1.7 cm)
Width: 12.8 inches (32.5 cm)
Depth: 8.94 inches (22.7 cm)
Weight: 2.96 pounds (1.35 kg)2

Graphics and Video : Intel HD Graphics 4000

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

Thunderbolt digital video output
Native Mini DisplayPort output

Two USB 3 ports (up to 5 Gbps)
Thunderbolt port (up to 10 Gbps)
MagSafe 2 power port
SD card slot

Wireless
802.11n Wi-Fi wireless networking;3 IEEE 802.11a/b/g compatible
Bluetooth 4.0 wireless technology

Audio
Stereo speakers
Omnidirectional microphone

Headphone port
Support for Apple iPhone headset with remote and microphone

Keyboard and Trackpad
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

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