iMac Intel 21.5" EMC 2428 (Mid 2011)
PC3-10600 4 GB RAM Chip
RAM Upgrade / 4 GB / PC3-10600 / Low Profile / 204 pin, 1333 MHz
PC3-10600 8 GB RAM Chip
Replacement or upgrade RAM chip. Specs: 8 GB / PC3-10600 / Low Profile / 204 pin, 1333 MHz. This speed upgrade will make your computer faster. Compatible with All Mid 201...
PC3-10600 2 GB RAM Chip
RAM Upgrade / 2 GB / PC3-10600 / Low Profile / 204 pin, 1333 MHz
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.