Display

• Retina display
• 15.4-inch (diagonal) LED-backlit display with IPS technology; 2880-by-1800 native resolution at 220 pixels per inch with support for millions of colors
• 300 nits brightness
• Standard color gamut (sRGB)
• 900:1 contrast ratio

Processor

• 2.5GHz
  2.5GHz quad-core Intel Core i7 processor

Memory

• 16GB of 1600MHz DDR3L onboard memory

Storage

• 2.5GHz – 512GB
  512GB PCIe-based flash storage

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: 4.49 pounds (2.04 kg)

Graphics and Video Support

• Intel Iris Pro Graphics​
  • 2.5GHz – 512GB
    Intel Iris Pro Graphics
    AMD Radeon R9 M370X 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 3840 by 2160 pixels on up to two external displays, both at millions of colors
• Thunderbolt digital video output
  • Native Mini DisplayPort output
• 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

Connections

Picture from Apple.com

• MagSafe 2 power port
• Two Thunderbolt 2 ports (up to 20 Gbps)
• Two USB 3 ports (up to 5 Gbps)
• HDMI port
• 3.5 mm headphone jack
• SDXC card slot

Audio

• Stereo speakers
• Dual microphones
• 3.5 mm headphone jack

Battery and Power

• Built-in 99.5-watt-hour lithium-polymer battery
• 85W MagSafe 2 Power Adapter with cable management system; MagSafe 2 power port

Operating System

macOS High Sierra