Montage Technology Unveils Industry’s First CXL 3.2 Memory eXpander Controller Chip

Montage Technology has announced the successful trial production of the world’s first CXL 3.2 Memory eXpander Controller (MXC) chip, setting a new benchmark for memory expansion and resource pooling in artificial intelligence (AI), cloud computing, and data center environments. This breakthrough leverages the latest Compute Express Link (CXL) technology, empowering organizations to build memory infrastructures with greater capacity, enhanced resource utilization, and increased flexibility.

Key Features of the CXL 3.2 MXC Chip

The CXL 3.2 MXC chip is fully compliant with CXL Type 3 specifications, supporting both CXL.mem and CXL.io protocols. It is engineered with PCIe 6.x and CXL 3.2 protocol compatibility, delivering impressive data transfer rates of up to 64 GT/s. The chip integrates dual DDR5 memory controllers, supporting speeds up to 8000 MT/s, and efficiently translates host-side CXL memory requests into DDR commands in real time. This capability enables seamless data exchange between the host and backend memory, effectively overcoming the memory capacity limitations of traditional server architectures.

Additional integrated features include PCIe 6.x PHY, DDR5 PHY, dual RISC-V processor subsystems, and a comprehensive suite of management interfaces. The MXC chip supports a variety of CXL memory expansion form factors, such as PCIe add-in cards (AIC) and EDSFF modules. This versatility is crucial for emerging applications like memory expansion, pooling, and tiered memory architectures in next-generation data centers.

Accelerating CXL Adoption in AI and Data Centers

According to Montage Technology, the trial production of the CXL 3.2 MXC chip marks a significant milestone in advancing CXL innovation and commercialization. As AI-driven workloads and cloud computing continue to drive up memory requirements, the MXC chip delivers high-bandwidth, large-capacity, and highly reliable memory expansion solutions. This advancement is expected to accelerate the widespread adoption of CXL technology in modern data center and AI infrastructure.

To support rapid deployment, Montage Technology offers a comprehensive software development kit (SDK) along with analysis and testing tools. These resources help customers streamline product development, compatibility validation, and mass production processes. The CXL 3.2 MXC chip has already been integrated into next-generation CXL products by leading memory module manufacturers, including Samsung and SK hynix, with initial validation successfully completed. The solution is designed for compatibility with major server platforms such as Intel Xeon and AMD EPYC, ensuring broad interoperability and optimal performance.

Industry Leaders Endorse Montage Technology’s CXL 3.2 MXC

Jangseok Choi, Vice President of Memory Product Planning at Samsung Electronics, commented, “The combination of CXL 3.2 MXC with DDR5 memory technology offers data center customers a solution that balances performance and capacity. Our collaboration validates the value of CXL in increasing system memory capacity and resource utilization, and provides additional options for next-generation AI infrastructure.”

Uksong Kang, Head of Next Gen Product Planning & Standardization at SK hynix, noted, “With the rapid adoption of large language models and generative AI, memory has become a critical factor in system performance. Montage Technology’s MXC product demonstrates strong potential for supporting high-capacity memory expansion and resource sharing. We look forward to deeper collaboration in ecosystem validation and product innovation.”

Dr. Debendra Das Sharma, Senior Fellow and Chief I/O Architect at Intel, remarked, “AI, next-gen cloud systems, and today’s industry economics are reshaping server memory architecture and driving demand for CXL. Montage Technology’s CXL 3.2 MXC demonstrates how the maturing CXL ecosystem delivers protocol support, compatibility, and performance, helping to unlock the memory expansion capabilities of next-generation Intel Xeon platforms.”

Amit Goel, Corporate Vice President, Compute and Enterprise AI Platform Solutions Engineering at AMD, added, “AI and data center workloads are driving continuous evolution of system architecture, making memory a key factor in performance and scalability. We look forward to our continued collaboration with Montage Technology on CXL technologies to deliver a foundation for building more flexible and efficient memory architectures.”

Conclusion

The introduction of Montage Technology’s CXL 3.2 MXC chip represents a pivotal advancement in memory expansion technology for AI, cloud, and data center applications. By enabling higher memory capacity, improved resource utilization, and seamless interoperability with leading server platforms, the MXC chip is poised to play a critical role in the next generation of high-performance computing infrastructure.