Fujitsu: The manufacturer of the memory kit.4GB DDR2 SDRAM PC400 Memory Kit: This indicates the total memory capacity and type of the memory kit. It consists of two memory modules, each with a capacit..
4GB DDR2-667 PC2-5300 REG ECC: This indicates the type and capacity of the memory module. It is a 4GB DDR2 (Double Data Rate 2) memory module with a speed of 667 megahertz (PC2-5300) and registered er..
FUJITSU 4GB DDR2-667 PC2-5300 REG D ECC MEMORY OPTION S26361-F3283-L516: