Intel Validated Kingston 2GB 2Rx8 DDR2 667 (PC2-5300F), KVR667D2D8F5/2GI $69.00 Kingston 4GB 240-Pin DDR2 FB-DIMM ECC Fully Buffered DDR2 667 (PC2 5300) Intel Certified Server Memory Model KVR667D2D4F5/4GI - Retail $149.00 Kingston 4GB 240-Pin DDR2 FB-DIMM ECC Fully Buffered DDR2 667 (PC2 5300) Dual Channel Kit Server Memory Model KVR667D2D4F5/4G - Retail $139.00 Kingston 8GB (2 x 4GB) 240-Pin DDR2 FB-DIMM ECC Fully Buffered DDR2 667 (PC2 5300) Dual Channel Kit Server Memory Model KVR667D2D4F5K2/8G - Retail $269.00