Brand: HPE | Category: Memory (RAM)
SKU: 838085-B21 | Part #: 838085-B21 | MPN: 838085-B21
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The HPE 64GB (1x64GB) Dual Rank x4 DDR4-2666 CAS-19-19-19 Load Reduced Smart Memory Kit (838085-B21) is a high-capacity, enterprise-grade LRDIMM module engineered for HPE ProLiant Gen10 servers. Operating at DDR4-2666 MHz with a CAS latency of 19-19-19, this module delivers a balance of high bandwidth and reliable performance across memory-intensive server workloads. The Load Reduced (LRDIMM) architecture employs a memory buffer to reduce the electrical load on the memory bus, enabling higher memory capacities per system while maintaining signal integrity at speed.
As an HPE Smart Memory module, this kit incorporates an onboard Serial Presence Detect (SPD) mechanism that allows HPE ProLiant server firmware to identify, validate, and optimize the module automatically during POST. This Smart Memory technology enables HPE servers to run at the highest supported speeds for the installed configuration and provides enhanced error detection and platform telemetry. The x4 DRAM device width combined with dual-rank organization maximizes memory density within a single DIMM slot, making it well suited for platforms requiring large aggregate memory footprints without fully populating all available slots.
Designed for deployment in HPE ProLiant Gen10 server platforms including the DL380 Gen10, DL360 Gen10, DL560 Gen10, and DL580 Gen10, this module addresses the demands of modern datacenter, virtualization, in-memory database, and AI/ML infrastructure environments. It supports ECC (Error Correcting Code) functionality natively, providing the fault resilience required for mission-critical enterprise operations and continuous availability workloads.
| Manufacturer | HPE |
| Manufacturer Part Number | 838085-B21 |
| Module Capacity | 64GB |
| Kit Configuration | 1x64GB |
| Memory Technology | DDR4 |
| Module Type | LRDIMM (Load Reduced DIMM) |
| Speed | DDR4-2666 MHz |
| CAS Latency (CL-tRCD-tRP) | 19-19-19 |
| Rank Configuration | Dual Rank |
| DRAM Device Width | x4 |
| ECC Support | Yes |
| Voltage | 1.2V |
| Form Factor | 288-pin DIMM |
| HPE Smart Memory | Yes |
| Compatible Server Families | HPE ProLiant Gen10 (DL360, DL380, DL560, DL580, ML350, and select others) |
| Operating Temperature | 0°C to 85°C |
| RoHS Compliant | Yes |
Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.
| Brand | HPE |
| Category | Memory (RAM) |
| SKU | 838085-B21 |
| Part Number | 838085-B21 |
| Condition | New |
| Manufacturer Part Number | 838085-B21 |
| Module Capacity | 64GB |
| Kit Configuration | 1x64GB |
| Memory Technology | DDR4 |
| Module Type | LRDIMM (Load Reduced DIMM) |
| Speed | DDR4-2666 MHz |
| CAS Latency (CL-tRCD-tRP) | 19-19-19 |
| Rank Configuration | Dual Rank |
| DRAM Device Width | x4 |
| ECC Support | Yes |
| Voltage | 1.2V |
| Form Factor | 288-pin DIMM |
| HPE Smart Memory | Yes |
| Compatible Server Families | HPE ProLiant Gen10 (DL360, DL380, DL560, DL580, ML350, and select others) |
| Operating Temperature | 0°C to 85°C |
| RoHS Compliant | Yes |
Part number 838085-B21 is qualified for HPE servers that list compatible memory in their QVL. We verify QVL match before quoting — share your server model in the RFQ and our pre-sales engineers confirm fit, recommended population pattern, and total capacity supported.
Full manufacturer support (typically 3 years, RDIMM/LRDIMM SKUs often lifetime against manufacturing defects). All product is sourced through distribution so support registers cleanly under your company name.
Submit the RFQ form on this page with your quantity and destination country. Our pre-sales team responds with a vendor-confirmed quote, availability, and matching server-QVL confirmation if needed.