Apple A Grade Desktop Computer iMac 27-inch (Retina 5K) 3.6GHZ 8-Core i9 (2019) MRR02LL/A-B 16 GB 18 TB HDD & 1 TB PCIe SSD 5120 x 2880 Display Dual Boot Mac OS/Windows 10 Pro Keyboard and MouseAll-In-One Refurbished Apple A Grade iMac (2019)3.6GHZ 8-Core i916 GB DDR4 RAM 18 TB HDD & 1 TB PCIe SSDDual Boot Mac OS/Windows 10 Pro27 Retina 5K 5120 x 2880 DisplayRadeon Pro 580X graphics processorIncludes Keyboard and MouseUse Windows side by side with macOS (no restarting required) on your iMac. Share files and folders copy and paste images and text and drag and drop files between Mac and Windows applications. See Parallels.com for more information.iMac 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.