The Corsair 6GB (3X2GB) Dominator TR3X6G1600C8D DDR2 SDRAM memory kit consists of four 2GB modules with a total capacity of 6GB. These DIMM modules have a bus speed of 1600 MHz and are designed for high performance in gaming, multitasking, and demanding applications. The memory modules are manufactured in the United States by Corsair, a reputable brand known for their quality memory products. Additionally, the memory kit includes ECC memory features, providing error correction for enhanced reliability and stability in computing systems.