Amazon.com: OWC 2GB PC5300 DDR2 667MHz SO-DIMM Memory Compatible with MacBook, MacBook Pro, iMac, and Mac Mini Models with Core 2 Duo Processor (OWC5300DDR2S2GB) : Everything Else
parts-quick 4GB 2 X 2GB PC2-5300F 667MHz 240 pin DDR2 SDRAM ECC Fully Buffered FB DIMM Server Memory for IBM System x3400 7973, 7974, 7975, 7976-x at Amazon.com
4GB KIT (2 x 2GB) for Dell PowerEdge Series R200 T100 T105. DIMM DDR2 ECC Unbuffered PC2-6400E 800MHz Dual Rank Server Ram Memory. Genuine A-Tech Brand. at Amazon.com