Apple iMac 21.5-inch ME086LL/A Late 2013 Silver - Intel Core i5-4570R 2.7Ghz - 8GB RAM - 1TB HDD + 128GB SSD (Scratch and Dent) - Walmart.com
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 Officially Confirms 21.5” iMac RAM Is Non-User-Replaceable