Apple MacBook Pro Retina 15-Inch i7 16GB 512GB SSD Big Sur OSX

16GB of 1600MHz DDR3L onboard memory.

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

lntel Iris 2500 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.

Stereo speakers

Dual microphones

Headphone port

Support for Apple iPhone headset with remote and microphone

Support for audio line out (digital/analog. 

Battery and Power

Up to 8 hours of wireless web

Up to 8 hours of 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.

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% non-condensing

Operating altitude: tested up to 10,000 feet

Maximum storage altitude: 15,000 feet

Maximum shipping altitude: 35,000 feet.