Samsung DDR5 RDIMM 128GB 5600MHz ECC Registered

The Samsung DDR5 RDIMM 128GB 5600MHz ECC Registered (M321RHGA0CB0-CQK) is a high-density, server-grade memory module built on Samsung's advanced DDR5 architecture. Operating at 5600 MT/s with a 288-pin registered DIMM form factor, it delivers substantially higher bandwidth and improved power efficiency compared to DDR4 predecessors. On-die ECC (ODECC) and the registered command/address buffer reduce electrical load on the memory controller, enabling large multi-DIMM configurations to maintain signal integrity at high speeds across modern dual-socket and quad-socket server platforms.

At 128GB per module, this RDIMM is engineered to support memory-bound enterprise workloads where capacity per slot is the primary constraint. The module uses a 3DS (Three-Dimensional Stacked) or high-density DRAM die configuration to achieve this capacity within a standard DIMM footprint, making it directly compatible with DDR5-capable server platforms from major brands. Operating voltage is 1.1V, consistent with the DDR5 specification, which reduces thermal output relative to equivalent-capacity DDR4 modules and simplifies thermal management in high-density rack deployments.

Target environments include in-memory database appliances, large language model (LLM) inference servers, high-performance computing (HPC) clusters, and real-time analytics platforms where aggregate memory capacity directly governs the size of the working dataset that can be held in RAM. When deployed across all available DIMM slots in a multi-socket server, configurations exceeding several terabytes of total system memory become achievable, enabling workloads that would otherwise require tiered or distributed memory architectures to run entirely within a single node's address space.

Ideal for

• In-memory database acceleration (SAP HANA, Oracle In-Memory, VoltDB) where the entire active dataset must reside in system RAM to meet sub-millisecond query SLAs
• Large language model inference serving, where multi-hundred-billion-parameter models require multi-terabyte node memory to avoid offloading activations or weights to slower storage tiers
• High-performance computing and scientific simulation nodes requiring maximum per-socket memory capacity with the bandwidth headroom DDR5 provides over DDR4
• Real-time streaming analytics and complex event processing platforms (Apache Flink, Hazelcast) that benefit from holding large stateful aggregations entirely in local memory
• Virtualization hosts and private cloud hypervisor nodes where consolidating a high number of memory-intensive VMs demands both large aggregate capacity and ECC reliability
• AI/ML training data preprocessing pipelines and feature stores where rapid random access to large structured datasets accelerates iteration cycles

Technical specifications

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