OCP Global Summit 2026: Panmnesia Accelerates PCIe-CXL Fusion Switch-Based Appliance Development

Panmnesia, an AI infrastructure company specializing in link solutions, showcased its PCIe 6.4-CXL 3.2 Fusion Switch at OCP Global Summit 2026, one of the world’s largest data center technology events, which took place October 12-15 at the San Jose Convention Center.Using its Fusion Switch silicon, Panmnesia is building CXL appliances with leading system manufacturers. During the show, the company advanced appliance development through meetings with existing appliance partners, while expanding collaboration to new companies and institutions.

From Compute to Memory: AI Infrastructure’s Center of Gravity Shifts
As AI moves beyond answering a single question and evolves into agentic AI – systems that plan on their own, call tools, and carry out multistep tasks – the bottleneck in the data center is shifting from compute to memory. Throughout a task, an agent must retain a kind of working memory, known as the KV cache, that holds prior conversations and task context, and the longer the context it handles, the more memory it needs. Market research firm TrendForce likewise notes that agentic AI is driving a structural expansion in memory demand[2]. The problem is that meeting this demand with GPU-attached high-bandwidth memory (HBM) alone is prohibitively expensive.

CXL Emerges as a Solution for Memory Expansion
The technology drawing attention as a way to bridge the gap between memory demand and cost is Compute Express Link (CXL), an open industry standard. CXL is a high-speed interface that connects compute devices such as CPUs and GPUs to memory, allowing operators to add memory as needed, or let multiple devices share it, without adding entire servers. Hyperscalers are increasingly disclosing production deployments and trials of CXL-based memory expansion. Results presented at an international conference showed that applying CXL memory to production servers reduced the number of servers required by up to 25% for certain workloads, and cloud virtual machines with CXL-attached memory have entered private preview.

Switches: The Key to Large-Scale CXL Expansion
For CXL memory expansion to extend beyond a single server to the rack, and ultimately to the entire data center, one component is essential: the switch. A switch acts as an intersection, routing data among multiple CPUs, accelerators, and memory devices. Connecting devices one by one quickly limits how many can be attached, but with a switch at the center, hundreds or even thousands of devices can be pooled into a single resource and allocated as needed. That is why data center operators and server and system manufacturers preparing large-scale CXL systems are focusing on switches.

Panmnesia Fusion Switch: Designed for Large-Scale Connectivity
Panmnesia’s Fusion Switch is a chip optimized for this kind of large-scale connectivity. Its cascading capability, which chains switches together, can unite hundreds or thousands of devices into a single system. Beyond scale, it is currently the only switch in the industry to support Port-Based Routing (PBR) from the CXL 3.2 spec, letting operators freely configure connection topologies to match their data center’s scale and workloads. And by supporting both PCIe and CXL on a single chip, it can connect virtually any device in the data center, including GPUs, CPUs, memory, and accelerators (see the Appendix for details).

Building CXL Appliances with Leading System Manufacturers
Thanks to these connectivity capabilities, leading system and server manufacturers preparing large-scale CXL systems are turning their attention to Panmnesia’s Fusion Switch. Panmnesia is currently building Fusion Switch-based CXL appliances with these manufacturers. Each appliance is designed as a fully integrated system that connects CPUs, memory, accelerators, and other devices through the Panmnesia Fusion Switch, so it can be deployed in the data center as is. Because no separate interoperability testing or configuration is needed to integrate the devices, customers can adopt rack-scale CXL environments more quickly.

Looking Ahead
“Through the appliances we are building with multiple leading system manufacturers, we expect to bring large-scale CXL systems into real-world data centers sooner,” said Myoungsoo Jung, CEO, Panmnesia.