The HP 805351-B21 32 GB Memory Module delivers great performance, reliability, and efficiency that provides the compatibility, capacity and bandwidth you need to productively manage your expanding workload with the HPE ProLiant Gen9 server, Apollo Family, Synergy and Blade Systems. The quality and reliability of DRAM are more important now than ever, as data center trends such as server virtualization, cloud computing, the use of large database applications, have all increased the need for higher capacity memory with greater uptime.