Brand: HPE | Category: Memory (RAM)
SKU: P43326-B21 | Part #: P43326-B21 | MPN: P43326-B21
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The HPE 16GB (1x16GB) Single Rank x8 DDR5-4800 CAS-40-39-39 Registered Smart Memory Kit (P43326-B21) delivers the next generation of server memory technology for HPE ProLiant Gen11 platforms. Built on the DDR5 architecture, this module operates at 4800 MT/s with a CAS latency profile of 40-39-39, providing a substantial bandwidth improvement over previous DDR4 generations. The single-rank x8 organization optimizes memory channel efficiency for workloads that benefit from lower rank-switching overhead, making it well suited for environments where latency consistency and throughput predictability are critical.
As a Registered (RDIMM) module, this kit incorporates an on-module register that buffers command and address signals between the memory controller and the DRAM components, improving signal integrity and enabling greater memory capacity scalability within supported server configurations. HPE Smart Memory technology embeds an on-module serial presence detect (SPD) mechanism that allows HPE ProLiant and Synergy servers to identify the module, validate compatibility, and unlock platform-specific performance and reliability features that are unavailable with third-party memory. This tight hardware-firmware integration supports HPE's Advanced Memory Protection capabilities on eligible platforms.
Designed and validated for enterprise datacenter, high-performance computing, and AI inference infrastructure, this memory kit meets the demands of memory-intensive virtualization stacks, in-memory databases, and scale-out cloud-native architectures. HPE factory testing and qualification ensure the module meets rigorous reliability and compatibility standards for continuous operation in production server environments, reducing unplanned downtime risk in mission-critical deployments across datacenter, edge, and hybrid cloud infrastructure.
| Manufacturer | HPE |
| Manufacturer Part Number | P43326-B21 |
| Module Capacity | 16GB |
| Kit Configuration | 1x16GB |
| Memory Technology | DDR5 |
| Memory Speed | 4800 MT/s |
| CAS Latency | CAS-40-39-39 |
| Module Type | RDIMM (Registered DIMM) |
| Rank Configuration | Single Rank |
| DRAM Organization | x8 |
| Form Factor | 288-pin DIMM |
| Voltage | 1.1V |
| Error Correction | ECC (Error Correcting Code) |
| HPE Smart Memory | Yes |
| Compatible Platform Generation | HPE ProLiant Gen11 |
| 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 | P43326-B21 |
| Part Number | P43326-B21 |
| Condition | New |
| Manufacturer Part Number | P43326-B21 |
| Module Capacity | 16GB |
| Kit Configuration | 1x16GB |
| Memory Technology | DDR5 |
| Memory Speed | 4800 MT/s |
| CAS Latency | CAS-40-39-39 |
| Module Type | RDIMM (Registered DIMM) |
| Rank Configuration | Single Rank |
| DRAM Organization | x8 |
| Form Factor | 288-pin DIMM |
| Voltage | 1.1V |
| Error Correction | ECC (Error Correcting Code) |
| HPE Smart Memory | Yes |
| Compatible Platform Generation | HPE ProLiant Gen11 |
| Operating Temperature | 0°C to 85°C |
| RoHS Compliant | Yes |
Part number P43326-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.