4GB [2x2GB] DDR2-667 (PC2-5300) RAM Memory Upgrade Kit for The Apple iMac 7,1 (20-inch, 2.0GHz, MA876LL/A) Intel Core 2 Duo (Genuine A-Tech Brand) at Amazon.com
A-Tech 16GB KIT (2 x 8GB) for Tyan TN Server Series TN68B4989 (B4989T68W8HR) | DDR2 667MHz PC2-5300R ECC-RDIMM ECC Registered DIMM Server RAM Memory at Amazon.com
HP 615863-001 2GB, DDR3-667MHz Memory Module at Amazon.com
A-Tech 16GB KIT (2 x 8GB) for Tyan TN Server Series TN68B4989 (B4989T68W8HR) | DDR2 667MHz PC2-5300R ECC-RDIMM ECC Registered DIMM Server RAM Memory at Amazon.com
Amazon.com: DDR2 667 2GB
2GB PC2-5300P Memory Kit 4X 512MB ECC DDR2 667 FB Server RAM Micron MT9HTF6472PY-667D2 at Amazon.com
8GB (2 x 4GB) - 667MHz DDR2-667/PC2-5300 - DDR2 SDRAM - 240-pin at Amazon .com