WC Data Doubler Optical Bay Hard Drive/SSD Mounting Solution For iMac 2009-2011. Compatible With 2009-2011 iMac models. Replace your optical Drive With a Hard Drive or SSD! Installation Tools Sold Separately :
2nd HD SSD Hard Drive Caddy Adapter for iMac 21 24 2009 2010 2011 2012 AD-5670S | eBay
Apple iMac 27" A1312 Late 2009 Core 2 Duo 8GB 500GB SSD #11030 – UKSL MacLab