ME874LL/A (A1398)
macOS 10.15 Catalina
15.4-inch LED-backlit Retina display with IPS technology; 2880x1800 resolution
2.6 GHz quad-core Intel Core i7 processor with Turbo Boost up to 3.8 GHz
16 GB 1600MHz DDR3 memory
512 GB Flash Storage
2 GB GDDR5 NVIDIA GeForce GT 750M dedicated GPU and Intel Iris Pro 5200 with 128 MB
Built-in FaceTime HD camera
AirPort Extreme wireless card (802.11ac)
Bluetooth 4.0 standard
Two Thunderbolt ports
HDMI port
Two USB 3.0 ports 
Secure Digital (SDXC) slot
MagSafe 2 Power Adapter included
Battery Cycle Count: 647

Condition: Used, Excellent Condition, 90 Day Warranty