Amazon.com: Mini DisplayPort to HDMI Adapter for iMac Late 2012 (27-inch, 21.5 inches) Mini DP to HDMI Adapter Compatible with MacBook Air/Pro, Microsoft Surface Pro/Dock, Projector and More 1-Pack : Electronics
Amazon.com: Apple iMac MK482LL/A 27-Inch Retina 5K Display Desktop (Intel Quad-Core i5 3.3GHz, 8GB RAM, 2TB Fusion Drive, Mac OS X), Silver ()(Renewed) : Electronics
A-Tech 8GB RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com