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 colours. Supported scaled resolutions: 1920 by 1200, 1680 by 1050, 1280 by 800, 1024 by 640 (500 nits brightness). Wide colour gamut (P3)

Chip: 

• - 2.6GHz quad-core Intel Core i7, Turbo Boost up to 3.5GHz, with 6MB shared L3 cache

Configurable to 2.9GHz quad-core Intel Core i7, Turbo Boost up to 3.8GHz, with 8MB shared L3 cache

-2.7GHz quad-core Intel Core i7, Turbo Boost up to 3.6GHz, with 8MB shared L3 cache

Configurable to 2.9GHz quad-core Intel Core i7, Turbo Boost up to 3.8GHz, with 8MB shared L3 cache

Memory: 16GB of 2133MHz LPDDR3 onboard memory

Storage: 256GB PCIe-based onboard SSD | 512GB PCIe-based onboard SSD

Graphics & Video Support: Intel HD Graphics 530 Radeon Pro 450 with 2GB of GDDR5 memory and automatic graphics switching | Radeon Pro 455 with 2GB of GDDR5 memory and automatic graphics switching. Four Thunderbolt 3 (USB-C) ports with support for: Charging, DisplayPort, Thunderbolt (up to 40 Gbps), USB 3.1 Gen 2 (up to 10 Gbps)

Wireless:Wi-Fi 802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible | Bluetooth Bluetooth 4.2 wireless technology.

Camera: 720p FaceTime camera

Audio: Stereo speakers Dual microphones 3.5 mm headphone jack. Support for Apple iPhone headset with remote and microphone

Battery: Up to 10 hours wireless web. Up to 10 hours iTunes movie playback. Up to 30 days of standby time. Built-in 76.0-watt-hour lithium-polymer battery. 

• 76W USB-C Power Adapter 

Dimensions (cm) / Weight (Kg): H 1.55 x W 34.93 x D 24.07 / 1.83

Software: macOS Sierra