SK Hynix 256GB DDR5-5600 LRDIMM 3DS ECC Server Memory HMCG94AGBRA129N

The SK Hynix HMCG94AGBRA129N represents the cutting edge of server memory density, combining 3DS (3D Stacking) technology with Load-Reduced DIMM (LRDIMM) architecture to achieve 256GB capacity on a single module. This ultra-high-capacity design addresses the critical memory bottleneck in large language model inference, real-time analytics, and simulation workloads where consolidating massive datasets into addressable memory significantly reduces latency and improves throughput compared to disk or network-based data access patterns.

3DS technology employs three-high die stacking within each DRAM package, enabling SK Hynix to pack substantially more capacity per module while maintaining electrical compliance and thermal characteristics. The LRDIMM design distributes address and command signals through a register and data buffer, allowing systems to support higher module populations per channel without degrading signal integrity—critical for scaling from 8-socket to 12-socket server configurations that require 2TB+ total memory.

Operating at DDR5-5600 (5600 MT/s), this module delivers 44.8 GB/s per-DIMM bandwidth, essential for memory-bound workloads in AI training support infrastructure, vector database operations, and financial modeling platforms. ECC protection ensures data integrity for mission-critical applications, while compliance with JEDEC DDR5 standards guarantees interoperability with validated server platforms including 4th and 5th generation AMD EPYC and Intel Xeon Scalable systems.

Ideal for

• Large language model (LLM) inference engines requiring 100GB+ per-node model weights in memory for sub-100ms latency responses
• Real-time vector databases and semantic search platforms consolidating billion-scale embeddings for recommendation and retrieval-augmented generation (RAG) systems
• In-memory analytics platforms (Spark, Presto, DuckDB) processing petabyte-scale datasets with sub-second query response times
• High-performance computing simulations in computational fluid dynamics, molecular dynamics, and climate modeling requiring massive working sets
• Financial services platforms executing microsecond-latency algorithmic trading and risk analytics across consolidated position data
• Enterprise data warehouses and OLAP systems supporting ad-hoc analytics on terabyte-scale fact tables without external caching layers

Technical specifications

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