MacBook Pro 15 inch retina mid 2015

MacBook Pro (Retina, 15-inch, Mid 2015) - Technical Specifications
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
Supported scaled resolutions:
1920 by 1200
1680 by 1050
1280 by 800
1024 by 640
300 nits brightness
Standard color gamut (sRGB)
900:1 contrast ratio
Processor
2.2GHz
2.2GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.4GHz) with 6MB shared L3 cache
Configurable to 2.5GHz quad-core Intel Core i7 (Turbo Boost up to 3.7GHz) with 6MB shared L3 cache or 2.8GHz quad-core Intel Core i7 (Turbo Boost up to 4.0GHz) with 6MB shared L3 cache.
2.5GHz
2.5GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.7GHz) with 6MB shared L3 cache
Configurable to 2.8GHz quad-core Intel Core i7 (Turbo Boost up to 4.0GHz) with 6MB shared L3 cache.
Memory
16GB of 1600MHz DDR3L onboard memory
Storage1
2.2GHz - 256GB
256GB PCIe-based flash storage
Configurable to 512GB or 1TB flash storage.
2.5GHz - 512GB
512GB PCIe-based flash storage
Configurable to 1TB 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)2
Graphics and Video Support
Intel Iris Pro Graphics
2.2GHz - 256GB
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
DVI, VGA, dual-link DVI, and HDMI output supported using Mini DisplayPort adapters (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
No alt supplied for Image
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
Apple Thunderbolt to FireWire Adapter (sold separately)
Apple Thunderbolt to Gigabit Ethernet Adapter (sold separately)
Wireless
Wi-Fi
802.11ac Wi‐Fi wireless networking; IEEE 802.11a/b/g/n compatible
Bluetooth
Bluetooth 4.2 wireless technology
Audio
Stereo speakers
Dual microphones
3.5 mm headphone jack
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
Force Touch trackpad for precise cursor control and pressure-sensing capabilities; enables Force clicks, accelerators, pressure-sensitive drawing, and Multi-Touch gestures
Battery and Power3
Up to 9 hours wireless web
Up to 9 hours iTunes movie playback
Up to 30 days of standby time
Built-in 99.5-watt-hour lithium-polymer battery
85W MagSafe 2 Power Adapter with cable management system; MagSafe 2 power port
Electrical and Operating Requirements
Line voltage: 100V to 240V AC
Frequency: 50Hz to 60Hz
Operating temperature: 50° to 95° F (10° to 35° C)
Storage temperature: –13° to 113° F (–25° to 45° C)
Relative humidity: 0% to 90% noncondensing
Operating altitude: tested up to 10,000 feet
Maximum storage altitude: 15,000 feet
Maximum shipping altitude: 35,000 feet
Operating System
macOS High Sierra
macOS is the operating system that powers everything you do on a Mac. macOS High Sierra brings new forward-looking technologies and enhanced features to your Ma

sparingly used
excellent condition
no box or carton
has hard case shell and screen protectors as well as touchpad guard and keyboard guard