Micron 4GB FBDIMM Cache Mem ECC MT36HTF51272FZ-667H1D6 657900-001 PC2-5300F DDR2 at Amazon.com
HP 398709-071 8gb 1x8gb 667mhz pc2-5300f ddr2 sdram fully buffered dimm fbd at Amazon.com
64GB (8x8GB) DDR2 PC2-5300F 667 MHz Server Memory RAM for HP ProLiant DL380 G5 Generation 5 Rackmount Upgrade Kit Fully Buffered FB DIMMs at Amazon.com
Komputerbay 4x 4GB 240 PIN DDR2 PC2-5300F 667MHz CL5 ECC Fully Buffered FB-DIMM 16 GB With Heatspreaders at Amazon.com
4GB 2 X 2GB PC2-5300F 667MHz 240 pin DDR2 SDRAM ECC Fully Buffered FB DIMM Server Low Power Memory for HP Workstation XW8600 (PARTS-QUICK BRAND). Equivalent to HP Part Numbers: 397413-B21, 442823-B21,
MT18HTF12872FDY-667D6D4 1GB DDR2 667mhz 2RX8 PC2-5300F-555-11-B0 at Amazon .com
16GB 4x4G PC2-5300F DDR2-667 ECC MT36HTF51272FY-667E1D4 SERVER MEMORY at Amazon.com