iMac Intel 21.5" EMC 2428 (Mid 2011)
Universal Drive Adapter
Transform any bare hard drive (SATA or IDE) into an external storage solution. Compatible with all G3 Lombard and Pismo PowerBooks, all G4 PowerBooks, all iBooks, all Mac...
In May 2011, Apple upgraded the 21.5" iMac. Externally, the machine features edge-to-edge glass and an aluminum rear bezel. Internally, an LED display, 4 RAM slots (to upgrade to a maximum of 16 GB RAM), more powerful video processing, and featuring quad Core i5 and i7 processors.