# Marvell Unveils Structera X CXL Memory Expanders

October 14, 2026 at 08:17 AM

> Marvell Technology announces second-generation CXL 3.2 memory expanders featuring PCIe 6.0 support and post-quantum cryptography security.

[Marvell Technology, Inc.](<https://hardwarebrief.com/entity/marvell-technology-q1347782>) announced its second-generation **Structera X** 3406 and 3506 [CXL 3.2](<https://hardwarebrief.com/entity/compute-express-link-q85845681>) memory expanders on October 12, 2026. These new models follow the first-generation 2404 and 2504, with sampling for the latest hardware expected in the first quarter of 2027.

The Structera X 3406 supports 18 DDR4 slots and 9 TB of memory, while the 3506 handles 12 DDR5 slots and 6 TB. Both feature six memory channels, 256 GB/s [PCIe 6.0](<https://hardwarebrief.com/entity/pci-express-q206924>) bandwidth, and 250 GB/s LZ4 compression. Security includes **Caliptra 2.0** and post-quantum cryptography.

These expanders enable memory capacity sharing with up to four hosts, utilizing StructGuard RAS for error correction. The series joins Marvell's CXL portfolio alongside Structera A near-memory acceleration and the Photonic Fabric Memory Appliance (PFMA) system.


#Marvell #CXL [#DataCenter](<https://hardwarebrief.com/hashtag/datacenter>) [#Semiconductors](<https://hardwarebrief.com/hashtag/semiconductors>) #PCIe6

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