Processor
2.8GHz quad-core Intel Core i7, Turbo Boost up to 3.8GHz, with 6MB shared L3 cache
Memory
16GB of 2133MHz LPDDR3 onboard memory
Storage
256GB PCIe-based onboard SSD1
Graphics
Radeon Pro 555 with 2GB of GDDR5 memory and automatic graphics switching
Intel HD Graphics 630
Charging and Expansion
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)
Video Support and Camera
720p FaceTime HD camera
Simultaneously supports full native resolution on the built-in display at millions of colours and:
Up to two displays with 5120×2880 resolution at 60Hz at over a billion colours
Up to four displays with 4096×2304 resolution at 60Hz at millions of colours
Up to four displays with 3840×2160 resolution at 60Hz at over a billion colours
Thunderbolt 3 digital video output
Native DisplayPort output over USB‑C
VGA, HDMI and Thunderbolt 2 output supported using adapters (sold separately)
Power and Battery
Up to 10 hours wireless web2
Up to 10 hours iTunes film playback2
Up to 30 days of standby time2
Built-in 76.0-watt-hour lithium-polymer battery
87W USB-C Power Adapter
Audio
Stereo speakers with high dynamic range
Three microphones
3.5mm headphone jack
Wireless
802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible
Bluetooth 4.2 wireless technology
Keyboard and Trackpad
Full-size backlit keyboard with:
64 (US) or 65 (ISO) keys including 4 arrow keys
Touch Bar with integrated Touch ID sensor
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
Size and Weight
Height: 1.55 cm (0.61 inch)
Width: 34.93 cm (13.75 inches)
Depth: 24.07 cm (9.48 inches)
Weight: 1.83 kg (4.02 pounds)3
https://www.apple.com/au/shop/product/FPTR2X/A/Refurbished-154-inch-MacBook-Pro-28GHz-Quad-core-Intel-Core-i7-with-Retina-display-Space-Gray