Apple iMAC A1418 Intel Core i7

Description DESCRIPTON Operating system: Mac OS 10.15, Catalina Memory: 16GB memory upgrade (two 8GB) 1600MHz DDR3 memory Storage: 1TB (5400-rpm) HDD 256GB SSD Flash Storage Optical drive: None Graphics: Intel® Iris Pro graphics Processor: Intel® Core™ i7 (3.1 GHz base frequency, up to 3.9GHz with Intel® Turbo Boost Technology, 8MB L3 cache, 4 cores) Display: 21.5 inches (54.61 cm) diagonal LED-backlit display with IPS technology; 1920-by-1080 resolution with support for millions of colors