Mac OSX runs even better with more RAM. PRO Memory Upgrade was designed on Mac Pro, MacBook Pro, and on an older PowerBook, trust that your iMac Core i7 2.8GHz 21.5-inch (Mid 2011) will run even better with a 1333MHz SO-DIMM Apple memory upgrade. Apple compatible memory is what we offer, equal to what is in your Apple computer now.
- Your Apple iMac Core i7 2.8GHz 21.5-inch (Mid 2011) maximum RAM capacity: 16GB
- This iMac Memory has 4 memory slots or sockets
- This iMac Memory module upgrade PIN count: 204-PIN
- The memory speed: 1333, DDR3-1333
- The Apple DIMM module type for your iMac Memory is: SODIMM, SO-DIMM, Small Outline DIMM