The Lenovo 39M5797 memory kit is a high-capacity, high-performance upgrade tailored for older IBM server systems that require PC2-5300 DDR2 memory. This kit includes two 4GB modules, totaling 8GB, allowing you to significantly increase your server’s memory capacity and improve overall system performance. Designed to operate at 667MHz, these modules can handle demanding server workloads, ensuring smoother operations and enhanced ability to run multiple applications simultaneously. The DDR2 technology, while older, provides a cost-effective solution for extending the service life and capability of legacy systems. This memory kit is specifically engineered for compatibility with select IBM servers, ensuring a reliable fit and immediate recognition by the system, making the upgrade process straightforward and hassle-free.