Apple Desktop Computer iMac 27-inch (Retina 5K) 3.6GHZ 8-Core i9 (2019) MRR02LL/A-B 64 GB 10 TB HDD 5120 x 2880 Display Mac OS Keyboard and Mouse All-In-One Refurbished Apple iMac (2019)3.6GHZ 8-Core i964 GB DDR4 RAM 10 TB HDDMac OS27 Retina 5K 5120 x 2880 Display Radeon Pro 580X graphics processor Includes Keyboard and MouseiMac 27-inch (Retina 5K) 3.6GHZ 8-Core i9 (2019). - Apple MRR02LL/A-BTO. The iMac Core i9 3.6 27-Inch Aluminum (Retina 5K Early 2019) features a 14-nm 9th Generation 3.6 GHz Intel Core i9 processor (I9-9900K) with eight independent processor cores on a single chip a shared 16 MB level 3 cache customize your hard drive and memory and a Radeon Pro 575X or Radeon Pro 580X graphics processor with 4 GB or 8 GB of dedicated GDDR5 video memory. It also has a built-in FaceTime HD webcam and stereo speakers.