Samsung CXL Memory Expander CMM-D 256GB

Samsung CXL Memory Expander CMM-D 256GB

Brand: Samsung | Category: Memory (RAM)

SKU: MXMPC4G0HMLS-00000 | Part #: MXMPC4G0HMLS-00000 | MPN: MXMPC4G0HMLS-00000

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About the Samsung CXL Memory Expander CMM-D 256GB

Latency and voltage performance are critical for high-frequency trading and in-memory database workloads, and the Samsung CXL Memory Expander CMM-D 256GB delivers the coherent, error-corrected memory capacity enterprises demand. This CXL Type-3 memory expander (part number MXMPC4G0HMLS-00000) harnesses DDR5 technology with CXL 2.0 protocol support to extend host memory pools without sacrificing cache coherency. Samsung engineered this add-in card to operate across a 0°C to 55°C temperature envelope, making it suitable for demanding data center deployments where thermal density and reliability are non-negotiable.

The CMM-D connects via PCIe 5.0 x8 interface and integrates cache-coherent host-managed device memory (HDM) through the CXL.mem sub-protocol, enabling seamless memory expansion on 4th and 5th generation Intel Xeon Scalable platforms and equivalent CXL 2.0-capable server ecosystems. Samsung's design includes full ECC support and comprehensive RAS features—error detection and correction, plus patrol scrub functionality—ensuring data integrity across the entire 256 GB capacity. Storage architects and IT infrastructure teams will appreciate the deterministic memory behavior and the elimination of bandwidth bottlenecks that traditional network-attached memory introduces. Linux kernel 5.12+ with CXL subsystem support and Windows Server environments with CXL-capable platform firmware both recognize this device natively, simplifying software integration. For workloads requiring low-latency, high-capacity memory without compromising uptime, this Samsung solution bridges the gap between CPU-local DRAM and external storage tiers.

Enterprise Memory Expansion Scenarios

  • High-frequency trading and quantitative analytics requiring sub-microsecond coherent memory access
  • In-memory databases and real-time analytics platforms scaling beyond traditional DIMM limits
  • AI model inference and training pipelines that benefit from enlarged working memory pools on a single node
  • Machine learning feature stores and vector databases demanding cache-coherent, error-protected capacity
  • Financial modeling and risk simulation engines leveraging deterministic memory behavior across redundant calculations

Contact Omnixon Global to request a quotation for the Samsung CXL Memory Expander CMM-D (MXMPC4G0HMLS-00000) and confirm availability for your CXL-ready infrastructure deployment.

Technical Specifications

BrandSamsung
CategoryMemory (RAM)
SKUMXMPC4G0HMLS-00000
Part NumberMXMPC4G0HMLS-00000
ConditionNew
Manufacturer Part NumberMXMPC4G0HMLS-00000
Product SeriesCXL Memory Expander CMM-D
Total Capacity256 GB
DRAM TechnologyDDR5
CXL Protocol VersionCXL 2.0
CXL Device TypeType-3 (Memory Expander)
Host InterfacePCIe 5.0 x8
CXL Sub-protocolCXL.mem
Memory CoherencyCache-coherent host-managed device memory (HDM)
ECC SupportYes
Form FactorCXL Add-in Card (CMM-D)
Operating Temperature0°C to 55°C
Power Consumption (TDP)Refer to Samsung official datasheet for confirmed TDP value
OS CompatibilityLinux kernel 5.12+ with CXL subsystem support; Windows Server with CXL-capable platform firmware
Platform RequirementServer platform with CXL 2.0-capable CPU and PCIe 5.0 x8 slot (e.g., 4th/5th Gen Intel Xeon Scalable)
RAS FeaturesError detection and correction, patrol scrub support

Frequently Asked Questions about Samsung CXL Memory Expander CMM-D 256GB

Is the Samsung CXL Memory Expander CMM-D 256GB compatible with my server?

Part number MXMPC4G0HMLS-00000 is qualified for Samsung servers that list compatible memory in their QVL. We verify QVL match before quoting — share your server model in the RFQ and our pre-sales engineers confirm fit, recommended population pattern, and total capacity supported.

What support applies to this memory module?

Full manufacturer support (typically 3 years, RDIMM/LRDIMM SKUs often lifetime against manufacturing defects). All product is sourced through distribution so support registers cleanly under your company name.

How do I request a quote?

Submit the RFQ form on this page with your quantity and destination country. Our pre-sales team responds with a vendor-confirmed quote, availability, and matching server-QVL confirmation if needed.