Micron DDR5 MCR DIMM 128GB 8800MT/s

The Micron DDR5 MCR DIMM 128GB 8800 MT/s represents a fundamental architectural advancement in server memory technology, leveraging Multiplexer Combined Ranks (MCR) design to break through the bandwidth ceiling of conventional DDR5 modules. MCR DIMMs integrate a data buffer that enables two ranks to operate simultaneously and present a single logical rank to the memory controller, allowing the DIMM to achieve 8800 MT/s—speeds that traditional RDIMMs and even LRDIMMs cannot reach at comparable capacities. This makes it the highest-bandwidth DDR5 DIMM commercially available for server platforms as of its 2025 Q3 launch, targeting organizations that require extreme memory throughput alongside high per-slot capacity.

At 128GB per module, the MCR DIMM dramatically increases the memory bandwidth-to-capacity ratio for platforms like Intel Xeon 6, which is purpose-built to exploit the MCR DIMM specification. With Xeon 6's increased memory channel count and MCR DIMM support, servers can be populated with unprecedented aggregate bandwidth figures, enabling workloads that have historically been constrained by the memory wall—such as large language model inference, in-memory databases, real-time analytics, and high-performance computing simulations—to operate with substantially reduced latency and higher throughput per core.

Micron engineered this module with enterprise-grade reliability features including on-die ECC (ODECC), advanced error correction at the buffer level, and full JEDEC DDR5 compliance with server-class RAS capabilities. The 128GB density is achieved through high-layer-count DRAM stacking and advanced packaging, enabling maximum memory footprint per server without requiring additional slots. The module is production-validated for deployment in 1DPC and 2DPC configurations on supported Xeon 6 motherboards, making it an ideal solution for data centers seeking to maximize compute utilization while minimizing the number of nodes required to handle memory-intensive enterprise workloads.

Ideal for

• Large language model (LLM) inference serving, where 8800 MT/s bandwidth sustains high token throughput for billions-of-parameter transformer models loaded entirely in DRAM
• In-memory relational and columnar databases such as SAP HANA and Oracle In-Memory Database, where per-socket memory bandwidth directly governs query execution speed
• High-performance computing (HPC) simulations in computational fluid dynamics, finite element analysis, and molecular dynamics that exhibit high memory bandwidth sensitivity
• Real-time streaming analytics pipelines processing terabytes of event data per hour, where sustained memory bandwidth prevents pipeline stalls and reduces processing latency
• Virtualization-dense environments on Intel Xeon 6 platforms requiring large per-VM memory allocations combined with predictable memory access performance across many simultaneous workloads
• AI training preprocessing and data augmentation stages where CPU-side memory bandwidth accelerates dataset shuffling, tokenization, and feature extraction prior to GPU transfer

Technical specifications

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