4GB iMac Memory for 2009 Models 9,1 10,1 and 11,1 (2GBx2)

4GB (2GBx2) iMac RAM for Models 9.1 to 11.1, DDR3-1066, 1066Mhz, PC3-8500, CAS Latency 7, Non-ECC, Unbuffered, 1.5V, 204pin SO-DIMM. Contains two (2) 2GB SO-DIMM memory modules that are specifically designed and SPD configured for the iMac Models 9.1 to 11.1. This module is compatible with the latest Apple Firmware. Watch our installation video: Click here for Apple's installation guide (PDF.)