Apple Desktop Computer iMac 27-inch (Retina 5K) 3.7GHZ 6-Core i5 (2019) MRR121LL/A 64 GB 1 TB HDD & 256 GB PCIe SSD 5120 x 2880 Display Mac OS Keyboard and Mouse All-In-One Refurbished Apple iMac (2019)3.7GHZ 6-Core i564 GB DDR4 RAM 1 TB HDD & 256 GB PCIe SSDMac OS27 Retina 5K 5120 x 2880 Display Radeon Pro 580X graphics processor Includes Keyboard and MouseiMac 27-inch (Retina 5K) 3.7GHZ 6-Core i5 (2019). - Apple MRR12LL/A. The iMac Core i5 3.7 27-Inch Aluminum (Retina 5K 2019/Coffee Lake) features a 9th Generation 14-nm Coffee Lake 3.7 GHz Intel Core i5 processor (I5-9600K) with six independent processor cores on a single chip a shared 9 MB level 3 cache customize your hard drive and memory and a Radeon Pro 580X graphics processor with 8 GB of dedicated GDDR5 video memory. It also has a built-in FaceTime HD webcam and stereo speakers.