HPE 128GB (1x128GB) DDR5-5600 CAS-46 EC8 Registered Smart Memory Kit

HPE 128GB (1x128GB) DDR5-5600 CAS-46 EC8 Registered Smart Memory Kit

Brand: HPE | Category: Memory (RAM)

SKU: P64337-B21 | Part #: P64337-B21 | MPN: P64337-B21

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About the HPE 128GB (1x128GB) DDR5-5600 CAS-46 EC8 Registered Smart Memory Kit

The HPE 128GB (1x128GB) DDR5-5600 CAS-46 EC8 Registered Smart Memory Kit (P64337-B21) represents a significant step forward in enterprise memory architecture, leveraging the DDR5 generation to deliver higher bandwidth, improved power efficiency, and greater per-DIMM capacity compared to prior DDR4 platforms. Operating at 5600 MT/s with a CAS latency of 46, this Registered DIMM (RDIMM) is engineered for HPE ProLiant Gen11 servers and HPE Alletra platforms, where it integrates with HPE's Smart Memory technology to enable server-level recognition, firmware validation, and optimized memory subsystem configuration.

As an EC8 (Error Correction Code 8) module, this kit goes beyond standard ECC to provide enhanced reliability through additional symbol-based correction capabilities, making it well-suited for environments where data integrity under sustained, high-throughput workloads is non-negotiable. HPE Smart Memory identification allows the host server's BIOS and management firmware to authenticate and tune the module automatically, reducing configuration risk in large-scale deployments and ensuring full support within HPE's Integrated Lights-Out (iLO) management ecosystem.

With 128 GB of capacity in a single DIMM, this kit enables administrators to build high-density memory configurations without maximizing DIMM slot count, preserving available slots for future scale-out. This makes it a strategic choice for memory-intensive enterprise workloads including in-memory databases, large language model inference, real-time analytics, and virtualization hosts requiring large per-VM memory allocations. The module ships as a 1x128GB kit, allowing incremental or symmetric population across multi-socket HPE server platforms.

Ideal for

  • High-density virtualization hosts running VMware vSphere or Microsoft Hyper-V, where large per-VM memory allocations and consolidation ratios demand maximum single-DIMM capacity
  • In-memory database platforms such as SAP HANA, Redis, or Oracle TimesTen, where entire working datasets must reside in DRAM for sub-millisecond query response
  • AI inference and large language model serving on HPE ProLiant Gen11 systems, where high-bandwidth DDR5 memory feeds accelerators and reduces data-staging bottlenecks
  • Real-time analytics and streaming data pipelines requiring sustained high-bandwidth memory throughput across multi-core processor architectures
  • Enterprise private cloud and hyperconverged infrastructure nodes where predictable memory performance and HPE firmware-level validation are required for SLA compliance
  • High-performance computing (HPC) workloads in scientific research, simulation, and financial modeling environments that benefit from large contiguous memory spaces and DDR5 bandwidth improvements

Technical specifications

ManufacturerHPE
Manufacturer Part NumberP64337-B21
Module DescriptionHPE 128GB (1x128GB) DDR5-5600 CAS-46 EC8 Registered Smart Memory Kit
Capacity128 GB
Kit Configuration1x 128 GB
Memory TechnologyDDR5
Memory Speed5600 MT/s
CAS Latency46 (CL46)
Module TypeRDIMM (Registered DIMM)
Error CorrectionEC8 (Enhanced Correction 8-symbol) ECC
Smart MemoryYes — HPE Smart Memory with server-level identification and firmware validation
Form Factor288-pin DIMM
Voltage1.1 V
ECC SupportYes
Compatible Server FamiliesHPE ProLiant Gen11 (select models), HPE Alletra MP
RankQuad Rank (4R)
Operating Temperature0°C to 85°C (standard DIMM operating range)

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.

Technical Specifications

BrandHPE
CategoryMemory (RAM)
SKUP64337-B21
Part NumberP64337-B21
ConditionNew
Manufacturer Part NumberP64337-B21
Module DescriptionHPE 128GB (1x128GB) DDR5-5600 CAS-46 EC8 Registered Smart Memory Kit
Capacity128 GB
Kit Configuration1x 128 GB
Memory TechnologyDDR5
Memory Speed5600 MT/s
CAS Latency46 (CL46)
Module TypeRDIMM (Registered DIMM)
Error CorrectionEC8 (Enhanced Correction 8-symbol) ECC
Smart MemoryYes — HPE Smart Memory with server-level identification and firmware validation
Form Factor288-pin DIMM
Voltage1.1 V
ECC SupportYes
Compatible Server FamiliesHPE ProLiant Gen11 (select models), HPE Alletra MP
RankQuad Rank (4R)
Operating Temperature0°C to 85°C (standard DIMM operating range)

Frequently Asked Questions about HPE 128GB (1x128GB) DDR5-5600 CAS-46 EC8 Registered Smart Memory Kit

Is the HPE 128GB (1x128GB) DDR5-5600 CAS-46 EC8 Registered Smart Memory Kit compatible with my server?

Part number P64337-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.

What support applies to this memory module?

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.

How do I request a quote?

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.