Lenovo TruDDR5 4800MHz ECC RDIMM 128GB (2Rx4)

Lenovo TruDDR5 4800MHz ECC RDIMM 128GB (2Rx4)

Brand: Lenovo | Category: Memory (RAM)

SKU: 4X77A94073 | Part #: 4X77A94073 | MPN: 4X77A94073

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About the Lenovo TruDDR5 4800MHz ECC RDIMM 128GB (2Rx4)

The Lenovo TruDDR5 4800MHz ECC RDIMM 128GB (2Rx4), part number 4X77A94073, is a high-capacity registered DDR5 memory module engineered specifically for Lenovo ThinkSystem servers. Operating at 4800MHz with a dual-rank, quad-die (2Rx4) organization, this module delivers substantially higher bandwidth and improved power efficiency compared to DDR4 predecessors, leveraging the on-die ECC and improved signal integrity architecture inherent to the DDR5 standard.

As a Registered DIMM (RDIMM), the module incorporates a register component that buffers command and address signals, enabling greater memory capacity scalability and electrical stability in multi-DIMM-per-channel configurations. The 128GB density is achieved through a x4 device width configuration across dual ranks, making it well-suited for memory-intensive enterprise workloads that demand both high capacity and reliable data integrity under sustained load. Error-correcting code (ECC) functionality provides hardware-level single-bit error correction and multi-bit error detection, a critical attribute for mission-critical deployments.

Validated under Lenovo's TruDDR program, this module undergoes rigorous compatibility and reliability testing against Lenovo ThinkSystem server platforms, ensuring predictable performance and stability in production environments. It is positioned for deployment in enterprise data centers, AI inferencing and training infrastructure, in-memory database platforms, and virtualization hosts where high per-DIMM capacity, DDR5 bandwidth, and ECC-grade reliability are non-negotiable requirements.

Ideal for

  • In-memory database and analytics platforms such as SAP HANA requiring large addressable memory footprints with ECC-protected data integrity
  • AI and machine learning inference servers where high-bandwidth DDR5 memory accelerates data movement between CPU and memory subsystems
  • High-density VMware or KVM virtualization hosts where maximizing DRAM per socket reduces VM sprawl and improves consolidation ratios
  • High-performance computing (HPC) nodes running memory-bound scientific simulations that benefit from DDR5 bandwidth improvements over DDR4
  • Enterprise database servers running Oracle, Microsoft SQL Server, or PostgreSQL workloads that require large buffer pool allocations and consistent ECC protection
  • Cloud-native and containerized workloads on Lenovo ThinkSystem platforms where per-node memory capacity directly impacts pod density and scheduling efficiency

Technical specifications

ManufacturerLenovo
Manufacturer Part Number4X77A94073
Module TypeRDIMM (Registered DIMM)
DDR GenerationDDR5
Capacity128GB
Speed4800MHz
Rank Configuration2Rx4 (Dual Rank, x4 device width)
Error CorrectionECC (Error-Correcting Code)
Form Factor288-pin DIMM
Voltage1.1V
On-Die ECCYes (DDR5 native on-die ECC)
CAS LatencyCL40
Module HeightLow Profile (31.25mm)
Compatible PlatformLenovo ThinkSystem servers with DDR5-capable Intel Xeon Scalable (4th Gen and later) processors
Memory Bus Width64-bit data bus with ECC
Operating Temperature0°C to 85°C (standard operating range)
Product LineLenovo TruDDR5

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

Technical Specifications

BrandLenovo
CategoryMemory (RAM)
SKU4X77A94073
Part Number4X77A94073
ConditionNew
Manufacturer Part Number4X77A94073
Module TypeRDIMM (Registered DIMM)
DDR GenerationDDR5
Capacity128GB
Speed4800MHz
Rank Configuration2Rx4 (Dual Rank, x4 device width)
Error CorrectionECC (Error-Correcting Code)
Form Factor288-pin DIMM
Voltage1.1V
On-Die ECCYes (DDR5 native on-die ECC)
CAS LatencyCL40
Module HeightLow Profile (31.25mm)
Compatible PlatformLenovo ThinkSystem servers with DDR5-capable Intel Xeon Scalable (4th Gen and later) processors
Memory Bus Width64-bit data bus with ECC
Operating Temperature0°C to 85°C (standard operating range)
Product LineLenovo TruDDR5

Frequently Asked Questions about Lenovo TruDDR5 4800MHz ECC RDIMM 128GB (2Rx4)

Is the Lenovo TruDDR5 4800MHz ECC RDIMM 128GB (2Rx4) compatible with my server?

Part number 4X77A94073 is qualified for Lenovo 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.