Hewlett Packard Enterprise 838085-B21 Memory Module

The Hewlett Packard Enterprise 838085-B21 64GB DDR4 Smart Memory module is a 1 x 64GB Load Reduced (LRDIMM) memory module designed for enterprise servers, delivering ECC-protected DDR4 memory at 2666 MT/s in a 288-pin DIMM with 1.2V operation. It features a quad-rank 4Rx4 configuration and CAS latency CL19, making it suitable for HPE ProLiant and other enterprise server platforms requiring high memory capacity for virtualization, databases, and high-performance computing workloads. Commonly used to upgrade server memory, optimize performance, and expand capacity in data center environments, this module supports uptime and data throughput in enterprise servers. The MPNs include 838085-B21, 868844-001, 840759-191, and 840759-091; related replacements include P00930-B21 64GB DDR4-2933, P06035-B21 64GB DDR4-3200, and 805358-B21 64GB DDR4-2400.