Description

• • Screen Size: 15.4-inch (diagonal) LED-backlit widescreen display with IPS technology.
  • Native Resolution: 2880-by-1800 pixels (Retina display) at 220 pixels per inch (ppi).
  • Brightness & Contrast: 300 nits brightness with a 900:1 contrast ratio.
  • Supported Scaled Resolutions: 1920×1200, 1680×1050, 1280×800, and 1024×640 pixels.

• • Processor: Intel Core i7 quad-core processor (Typically a 2.2GHz base clock, Turbo Boost up to 3.4GHz with 6MB shared L3 cache).
  • Memory: 16GB of 1600MHz DDR3L onboard memory. (Note: RAM is soldered directly onto the logic board and cannot be upgraded post-purchase).

• • Storage: 256GB PCIe-based flash storage (SSD). (Upgradeable using proprietary Apple NVMe slots or aftermarket adapters).
  • Graphics: Intel Iris Pro Graphics (Integrated).
  • External Video Support: 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 via Thunderbolt.

• • Power: MagSafe 2 power port.
  • Thunderbolt: Two Thunderbolt 2 ports (up to 20 Gbps).
  • USB: Two USB 3 ports (up to 5 Gbps).
  • HDMI: One dedicated HDMI port.
  • Audio: 3.5mm headphone jack.
  • Card Slot: SDXC card slot.  

• • Wi-Fi: 802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible.
  • Bluetooth: Bluetooth 4.0 / 4.2 wireless technology.
  • Camera: 720p FaceTime HD camera.
  • Audio: Stereo speakers with high dynamic range, dual microphones, and support for Apple iPhone headset with remote and microphone. 

• Keyboard: Full-size backlit keyboard with ambient light sensor.
• Trackpad: Force Touch trackpad for precise cursor control and pressure-sensing capabilities.
• Battery: Built-in 99.5-watt-hour lithium-polymer battery.
• Battery Life: Rated for up to 9 hours of wireless web browsing or iTunes movie playback when new