The Apple Mac Pro 2 RAM modules, with a total capacity of 1GB each, are Hynix brand DDR1 SDRAM FB-DIMMs. These memory modules feature ECC and Fully Buffered technology, ensuring reliable performance. With a bus speed of PC2-6400 (DDR2-800), these RAM modules are designed for high performance in computer systems. Manufactured in the United States, these modules come with a lifetime manufacturer warranty, making them a secure and dependable choice for your computing needs.