Upgrade your Apple Mac Pro 3,1 (Early 2008) with this 4GB memory RAM kit from OWC. Each module has a capacity of 2GB, providing a total capacity of 4GB. The DDR2 FB-DIMM SDRAM technology with ECC memory and fully buffered features ensures fast and reliable performance. With a bus speed of 800MHz DDR2, this memory kit is perfect for high-performance computing. The 240-pin design makes it easy to install, while the form factor is DIMM. Get this memory kit and enjoy a seamless computing experience.