Amazon.com: Apple iMac 21.5in 2.7GHz Core i5 (ME086LL/A) All In One Desktop, 8GB Memory, 1TB Hard Drive, Mac OS X Mountain Lion (Renewed) : Electronics
Apple IMAC 21.5 Desktop - Intel Core i5 2.3GHz, 16GB RAM, 256GB Flash Storage, Intel Iris Plus Graphics 640, Two Thunderbolt 3 ports, 802.11ac Wi-Fi, Apple Magic Keyboard, Magic Mouse 2 - Z0TH-231625 at TigerDirect.com
Apple iMac 21.5-Inch - 1TB HDD, 8GB RAM, Intel Core i5 2.8 GHz, Mac OS (Used) - Walmart.com
Best Buy: Apple 21.5" iMac® All-In-One Intel Core i5 16GB Memory 1TB Hard Drive Silver Z0TK00057