The product is a lot of 3 Samsung 2GB PC2-6400F-666-11-R0 DDR2 800Mhz Fully Buffered Server RAM modules. Each module has a capacity of 2GB and is designed for server use with ECC memory features. These memory modules are manufactured by Samsung, known for their quality and reliability, and come with a lifetime warranty for added peace of mind. With a total capacity of 6GB across the three modules, this RAM is suitable for high-performance server applications requiring fast and stable memory access.