Apple iMac (21.5-inch, Mid 2010) Memory RAM | 4GB DDR3 1333MHz (PC3-10600) SODIMM 1.5V

Supported Model Configurations Upgrade Designed For Apple iMac (21.5-inch, Mid 2010) Apple Order No. BTO/CTO | 3.6GHz 2-Core Intel Core i5-680 MC508LL/A | 3.06GHz 2-Core Intel Core i3-540 MC509LL/A | 3.2GHz 2-Core Intel Core i3-550 Apple Model No. A1311 (EMC 2389) Apple Model ID iMac11,2 Max Possible Memory 16GB Product Information Total Capacity 4GB Class DDR3 Capacity Per Module 4GB Speed PC3-10600 Number of Modules 1 Frequency 1333MHz ECC Type Non-ECC Unbuffered Form Factor SODIMM Rank 2Rx8 (Dual Rank) Pin Count 204 Compatible Machine Type Laptop / Notebook / AIO Voltage 1.5V