iMac Intel 27" EMC 2429 (Mid 2011) Optical Drives
iMac Intel 21.5" and 27" (Late 2009-Mid 2011) SATA Optical Drive
Replace a malfunctioning or noisy model GA11N SATA superdrive optical drive.
In May 2011, Apple updated the 27" 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 32 GB RAM), more powerful video processing, and faster processors.
Additionally, these 27" iMacs have all been included with Quad Core i5 or i7 processors to give you the most powerful iMac experience yet!