FUJITSU 4GB DDR2 SD RAM PC400 MEMORY KIT, 2x 2GB RoHS S26361-F3068-L442

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 capacity of 2GB, totaling 4GB. The memory type is DDR2 SDRAM, which stands for Double Data Rate 2 Synchronous Dynamic Random-Access Memory. The "PC400" specification likely refers to the memory speed, with a clock frequency of 400MHz.

2x 2GB: This specifies that the memory kit includes two identical 2GB memory modules.

RoHS: This stands for Restriction of Hazardous Substances. It indicates that the memory kit complies with environmental regulations restricting the use of certain hazardous materials in electronic products.