iMac RAM Upgrade Model ID 4,1 - 5,2 DDR2 667MHz
An iMac RAM Upgrade for Model IDs 4,1 4,2 and 5,2 have a system maximum of 2GB. It is important to note this does not include the iMac 5,1. These DDR2-667 based iMacs are also known as the Early 2006, Mid 2006, and Late 2006 CD series.
Specifications: PC2-6400, DDR2-667, 667Mhz, Latency 5-5-5 , Non-ECC, Unbuffered, 1.8V, 200pin SO-DIMM.
This DIMM module is specifically designed and SPD configured for the iMac Intel running 667Mhz Memory. This module is compatible with the latest Apple Firmware.