Marvell Releases Second-Generation Structera X CXL 3.2 Memory Expander
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On October 12, 2026, Marvell released the second-generation Structera X 3406 and 3506 CXL 3.2 memory expanders via an official announcement, targeting AI inference scenarios. According to the announcement, the products are the industry's first six-channel CXL memory expansion products, using a six-channel DDR4/DDR5 design with 50% more channels than the previous generation; each controller supports up to 9TB of DDR4 or 6TB of DDR5 memory; and they support PCIe Gen 6 (PCIe 6.0 x16), providing host bandwidth of up to 256GB/s. All reports are from the announcement day, with only official first-party information available; no further details such as mass-production timing, pricing, or customer adoption have been seen.
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- Marvell Optical Interconnect and Official AnnouncementsMarvell Unveils Second-generation Structera X, Industry-first Six-channel CXL 3.2 Memory Expanders for AI Inference
Marvell released the second-generation Structera X 3406 and 3506 CXL 3.2 memory expanders, the industry's first six-channel CXL memory expansion products, with 50% more channels than the previous generation, supporting up to 9TB of DDR4 or 6TB of DDR5 per controller and delivering up to 256GB/s of host bandwidth over PCIe 6.0 x16.
- Marvell Optical Interconnect and Official AnnouncementsADDING and REPLACING Marvell Unveils Second-generation Structera X, Industry-first Six-channel CXL 3.2 Memory Expanders for AI Inference
Marvell has launched its second-generation Structera X 3406 and 3506 CXL 3.2 memory expanders, built on an industry-first six-channel DDR4/DDR5 design that increases channel count by 50% over the previous generation, supports PCIe Gen 6, and allows a single controller to support up to 9TB DDR4 or 6TB DDR5.
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