Refurbished: Apple A Grade Desktop Computer iMac 21.5-inch (Retina 4K) 3.6GHZ Quad Core i7 (Mid 2017) MNE02LL/A-BTO 24 GB 2 TB SSD 4096 x 2304 Display Mac OS Includes Keyboard and Mouse - Newegg.com
Mid 2017 Apple iMac with Retina 4K Display with 3.0 GHz Intel Quad Core i5 (21.5-inch, 16GB RAM, 1TB Storage) - Silver (Renewed) : Amazon.co.uk: Computers & Accessories
Apple iMac 21.5" 4K (2017): Unboxing & Review - YouTube