NEMIX, a U.S.-based enterprise memory and storage supplier, has listed a 4TB DDR5 memory kit built around ECC RDIMM modules, highlighting the rising cost of high-density server memory. The kit includes 16 modules, each rated at 256 GB, running at 6400 MT/s with a CAS latency of 52. According to the listing, the full configuration is priced at $70,800, positioning it firmly in the enterprise and hyperscaler segment.
At this price, the cost breaks down to roughly $17.3 per GB, well above typical consumer DDR5 pricing. The gap reflects both current DRAM supply pressures and the specialized nature of registered ECC memory. High-capacity RDIMMs remain in limited supply, and demand from data centers continues to outpace availability, particularly for configurations designed to reach multi-terabyte memory capacities per server.
The modules rely on off-die error correction hardware, which separates them from standard DDR5 DIMMs. While DDR5 includes on-die ECC, that feature is limited to internal error handling and does not provide full system-level protection. Enterprise environments still require external ECC logic to maintain data integrity, especially in systems running large databases, virtualization platforms, or long-duration compute workloads.
These RDIMMs use a 4Rx4 rank layout and operate at 1.1 V, balancing performance and power efficiency in dense server deployments. Registered buffering further improves stability when large numbers of memory modules are installed on a single platform, a common requirement in modern data centers.
NEMIX frequently supplies memory to government agencies and hyperscalers, where pricing is often adjusted through bulk purchasing agreements. In that context, the listed price may not reflect final transaction values. For large operators, memory represents a necessary component rather than a discretionary upgrade, particularly in AI training systems, in-memory analytics, and virtualization clusters, where capacity and reliability directly affect workload scale.
The listing underscores how enterprise DDR5 memory continues to command a premium as capacity requirements increase and supply remains tight.
