The product is a 4GB Hynix RAM module that consists of two 2GB modules, ideal for enhancing the memory capacity of a computer. With a DDR2 SDRAM type and a bus speed of PC2-6400 (DDR2-800), this RAM is designed to provide fast and efficient data processing for improved overall system performance. Perfect for those looking to upgrade their computer's memory capacity, this RAM module from Hynix offers reliable and high-quality performance.