The HP 817939-B21 CPU Kit provides a powerful upgrade for the HP ProLiant DL380 Gen9 server series with the inclusion of the Intel Xeon E5-2643 v4 processor. Tailored for environments where both speed and reliability are critical, this six-core processor operates at a base frequency of 3.40GHz, making it an excellent choice for applications requiring rapid processing and real-time data analysis. The processor is enhanced with Intel Turbo Boost Technology, permitting speeds up to 3.7GHz, adapting to your workload demands for optimal performance. With a 20MB cache, it efficiently handles data-intensive tasks, reducing processing time by keeping key information accessible. The CPU kit supports DDR4 memory up to 2400MHz, facilitating faster data transfers and improved server efficiency. It includes an HP-designed cooling solution to ensure sustained performance by maintaining optimal operating temperatures. Complete with an installation guide and required hardware, this CPU kit offers an effective way to refresh and enhance the capabilities of your HP ProLiant DL380 Gen9 servers, ensuring they continue to meet your business needs.