Description
Display
- Retina display: 15.4-inch (diagonal) LED-backlit display with IPS technology; 2880-by-1800 resolution at 220 pixels per inch with support for millions of colors
 - Native resolution: 2880 by 1800 pixels (Retina); scaled resolutions: 1920 by 1200, 1680 by 1050, 1280 by 800, and 1024 by 640 pixels
 
Processor
- 2.5GHz
2.5GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.7GHz) with 6MB shared L3 cache 
Memory
- 16GB of 1600MHz DDR3L onboard memory
 
Size and Weight
- Height: 0.71 inch (1.8 cm)
 - Width: 14.13 inches (35.89 cm)
 - Depth: 9.73 inches (24.71 cm)
 - Weight: 4.46 pounds (2.02 kg)2
 
Graphics and Video support
- Intel Iris Pro Graphics
 - NVIDIA GeForce GT 750M with 2GB of GDDR5 memory and automatic graphics switching
 - Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on up to two external displays, both at millions of colors
 - 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 video output
- Support for 1080p resolution at up to 60Hz
 - Support for 3840-by-2160 resolution at 30Hz
 - Support for 4096-by-2160 resolution at 24Hz
 
 
Camera
- 720p FaceTime HD camera
 
Connections and Expansion

- MagSafe 2 power port
 - Two Thunderbolt 2 ports (up to 20 Gbps)
 - Two USB 3 ports (up to 5 Gbps)
 - HDMI port
 - Headphone port
 - SDXC card slot
 - Apple Thunderbolt to FireWire Adapter (sold separately)
 - Apple Thunderbolt to Gigabit Ethernet Adapter (sold separately)
 
Wireless
- Wi-Fi
802.11ac Wi-Fi wireless networking;3 IEEE 802.11a/b/g/n compatible - Bluetooth
Bluetooth 4.0 wireless technology 
Audio
- Stereo speakers
 - Dual microphones
 - Headphone port
- Support for Apple iPhone headset with remote and microphone
 - Support for audio line out (digital/analog)
 
 
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.
Battery and Power4
- Up to 8 hours wireless web
 - Up to 8 hours iTunes movie playback
 - Up to 30 days standby time
 - Built-in 95-watt-hour lithium-polymer battery
 - 85W MagSafe 2 Power Adapter with cable management system; MagSafe 2 power port
 





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