4GB 2 X 2GB PC2-5300F 667MHz 240 pin DDR2 SDRAM ECC Fully Buffered FB DIMM Server Low Power Memory for HP ProLiant xw460c Blade Workstation (PARTS-QUICK BRAND). Equivalent to HP Part Numbers:
RMN1150EG38D6F 512MB 1Rx8 DDR2 SO-DIMM PC2-5300 667MHz 200-Pin Non-ECC CL5 1.8V Laptop Memory Module RMN1150EG38D6F-667 Compatible Replacement Spare Part for Ramaxel Compatible and Other Systems at Amazon.com
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
OWC 4GB (2 x 2GB) PC5300 DDR2 667MHz SO-DIMMs Memory Compatible with MacBook, MacBook Pro, iMac, Mac Mini Core 2 Duo Models (OWC5300DDR2S4GP)