Micron 480GB DDR5 CXL Memory Expander (CZ120)

The Micron CZ120 is a 480GB DDR5 CXL (Compute Express Link) Memory Expander designed to extend the addressable memory capacity of CXL 1.1/2.0-compliant host systems beyond the physical DIMM slot limitations of standard server platforms. Built on Micron's advanced DDR5 DRAM technology and presented in a PCIe Gen 5 x8 add-in card form factor, the CZ120 enables memory pooling and expansion architectures that are increasingly critical in memory-bandwidth-intensive enterprise and hyperscale environments. The device connects to the host processor via the CXL.mem protocol, presenting its capacity as coherent, byte-addressable memory to the operating system and workload stack.

The CZ120 leverages Micron's high-density DDR5 DRAM modules integrated onto a CXL memory controller substrate, delivering the error-correction reliability and RAS (Reliability, Availability, Serviceability) features demanded by mission-critical datacenter deployments. The on-board CXL controller manages memory access latency, refresh operations, and thermal throttling autonomously, reducing host CPU overhead. With 480GB of usable DRAM capacity in a single E3.S or EDSFF-compatible carrier (depending on platform integration), the CZ120 dramatically increases per-node memory capacity without consuming additional CPU-attached DIMM slots, preserving those slots for latency-optimized working sets.

Targeted at AI inference and training infrastructure, in-memory databases, real-time analytics, and memory-disaggregated cloud architectures, the Micron CZ120 is engineered for next-generation two-socket and single-socket Intel Sapphire Rapids and subsequent CXL-capable server platforms. Its manufacturer part number MTC480F9154S1RC48BA1 identifies this specific 480GB capacity point within Micron's CZ120 CXL expander product line, and the device is positioned for enterprise IT procurement teams building scalable, software-defined memory tiers across UAE, GCC, EMEA, and APAC datacenter footprints.

Ideal for

• AI and machine learning inference: expanding per-node memory capacity to hold large model parameter sets and activation data in DRAM without offloading to slower NVMe storage tiers
• In-memory databases (SAP HANA, Oracle TimesTen, Redis Enterprise): increasing addressable DRAM per server node to accommodate growing hot-data working sets that exceed standard DIMM slot capacity
• Real-time analytics and OLAP: enabling memory-resident columnar data stores and analytics engines to process larger datasets in a single query pass, reducing shuffle and spill-to-disk overhead
• Memory-disaggregated cloud infrastructure: supporting CXL fabric-attached memory pooling architectures where memory capacity is provisioned independently of compute, improving resource utilization across multi-tenant environments
• High-performance virtualization: providing hypervisors (VMware vSphere, KVM) with additional DRAM capacity to increase VM density per host or allocate larger memory balloons to latency-sensitive guest workloads
• Genomics and scientific computing: maintaining large reference datasets, simulation state, or graph-structured biological data entirely in DRAM to accelerate iterative computation pipelines

Technical specifications

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