Lenovo TruDDR5 5600MHz ECC RDIMM 256GB (2Rx4)

The Lenovo TruDDR5 5600MHz ECC RDIMM 256GB (2Rx4), part number 4X77A87326, is a high-capacity registered DDR5 memory module engineered specifically for Lenovo ThinkSystem servers. Operating at 5600MHz with a dual-rank, quad-die (2Rx4) configuration, it delivers exceptional memory bandwidth and density to accelerate compute-intensive enterprise workloads. Error-correcting code (ECC) functionality actively detects and corrects single-bit memory errors in real time, ensuring the data integrity and system reliability that mission-critical environments demand.

Built to the DDR5 JEDEC standard, this RDIMM leverages an on-module registering buffer that reduces electrical load on the memory controller, enabling stable operation across large memory configurations within supported Lenovo ThinkSystem platforms. The 256GB capacity per module allows administrators to build extremely dense memory pools without exhausting DIMM slot counts, making it particularly valuable in memory-constrained rack environments where physical slot availability limits scalability. The module's 5600MHz data rate represents a significant bandwidth improvement over previous DDR4 generations, directly translating to reduced data starvation for bandwidth-sensitive processors and accelerators.

As a Lenovo TruDDR5 component, this module is validated through Lenovo's rigorous system-level compatibility and thermal qualification process, ensuring deterministic performance and stability when deployed in supported ThinkSystem server generations. This validation pedigree is especially relevant for organizations operating under strict SLA requirements, AI and machine learning infrastructure, and large-scale database or in-memory analytics environments where unplanned downtime or memory-related instability carries significant operational consequences.

Ideal for

• Large-scale AI and machine learning model training on Lenovo ThinkSystem servers, where high per-DIMM capacity reduces the number of modules required while maximizing available memory bandwidth for GPU and CPU co-processing tasks
• In-memory database deployments such as SAP HANA, Redis, or VoltDB, where 256GB per slot enables terabyte-scale memory configurations that keep entire datasets resident in RAM for sub-millisecond query response
• Virtualization hosts running VMware vSphere or Red Hat OpenShift, where dense memory capacity supports high virtual machine consolidation ratios and reduces the physical server footprint in the datacenter
• High-performance computing (HPC) clusters executing memory-intensive simulation, computational fluid dynamics, or genomic analysis workloads that require both high bandwidth and large addressable memory spaces
• Enterprise data warehousing and real-time analytics platforms processing large concurrent query workloads, benefiting from DDR5's improved bandwidth to feed data rapidly to multi-core processors
• Cloud service provider and colocation infrastructure requiring maximum memory density per rack unit to optimize power, cooling, and space efficiency across large-scale server deployments

Technical specifications

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