MacBook Air 2014

Display
13.3-inch (diagonal) LED-backlit glossy widescreen display with support for millions of colors
Supported resolutions: 1440 by 900 (native), 1280 by 800, 1152 by 720, and 1024 by 640 pixels at 16:10 aspect ratio and 1024 by 768 and 800 by 600 pixels at 4:3 aspect ratio
Storage1
128GB
128GB PCIe-based flash storage
256GB
256GB PCIe-based flash storage
Configurable to 512GB flash storage.
Processor
1.4GHz dual-core Intel Core i5 (Turbo Boost up to 2.7GHz) with 3MB shared L3 cache
Configurable to 1.7GHz dual-core Intel Core i7 (Turbo Boost up to 3.3GHz) with 4MB shared L3 cache.
Memory
4GB of 1600MHz LPDDR3 onboard memory
Configurable to 8GB.
Battery and Power2
Up to 12 hours wireless web
Up to 12 hours iTunes movie playback
Up to 30 days standby time
Built‑in 54‑watt‑hour lithium‑polymer battery
45W MagSafe 2 Power Adapter with cable management; MagSafe 2 power port
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)3