General Features:
Apple aluminum unibody
Thinner and lighter design
Color: Space Gray
Mac OS X version 10.10.2 Yosemite pre-installed
Intel Core M-5Y51 Dual-Core 1.2GHz CPU
Turbo Boost up to 2.6GHz
Cache: 4MB L3 cache
8GB 1866MHz LPDDR3 RAM
256GB Solid State Drive
Integrated audio with stereo speakers
Intel HD Graphics 5300
802.11ac Wireless LAN
Bluetooth Wireless 4.0
480p FaceTime camera and dual microphones
Pressure-sensitive, multi-touch control Force Touch trackpad
Full-size keyboard with backlighting
12-inch backlit-LED IPS Retina display (2304 x 1440)
SuperSpeed+ USB 3.1 type-C port for charging, extended display, and data transfers

I/O Ports:
One (1) SuperSpeed+ USB 3.1 Type-C port

Charging and Expansion:
USB-C port with support for:
Charging
USB 3.1 Gen 1 (up to 5 Gbps)
Native DisplayPort 1.2 video output
VGA output using USB-C VGA Multiport Adapter (sold separately)
HDMI video output using USB-C Digital AV Multiport Adapter (sold separately)

Display:
Retina display
12-inch (diagonal) LED-backlit display with IPS technology
2304-by-1440 resolution at 226 pixels per inch with support for millions of colors
16:10 aspect ratio
Supported scaled resolutions:
1440 by 900
1280 by 800
1024 by 640

Graphics and Video Support:
Dual display and video mirroring: simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels at 30Hz on an external display, both at millions of colors

Battery Specifications:
Lithium-ion
41.4-watt-hour
Up to 10 hours wireless web
Up to 11 hours iTunes movie playback
Up to 30 days of standby time

Power Adapter Specifications:
Input: 100-240V ~ 50/60Hz, 0.75A
Output: 14.5V---2.4A, 29W

Unit Dimensions:
0.52 x 11.04 x 7.74-inches (H x W x D)
Weight: 2.03 lbs
Package Includes:


Apple MacBook Retina 12" IPS Notebook
Mac OS X version 10.10.2 Yosemite pre-installed
29W USB-C power adapter