# Marvell unveils six-channel CXL memory expanders for AI inference

> Marvell introduced its second-generation Structera X 3406 and 3506 CXL 3.2 memory expanders at the OCP Global Summit.

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- Publisher: Newsverum
- Section: Technology
- Country: United States
- Published: 2026-10-13T00:51:40+00:00
- Updated: 2026-10-13T00:51:40+00:00
- Event / data period: 2026-10-12
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Both designs have six DDR4/DDR5 memory channels, which Marvell describes as 50% more than the prior generation. The company lists support for up to 9 TB of DDR4 with the 3406, 6 TB of DDR5 with the 3506, and sharing across as many as four hosts.

The products were demonstrated at the event; Marvell said it expects the controllers to sample in the first quarter of 2027. Capacity and latency benefits are company claims and have not been independently verified here.

## Data

### Scope of the announced design

Marvell introduced its second-generation Structera X 3406 and 3506 CXL 3.2 memory expanders at the OCP Global Summit.

Methodology: Records memory-channel and capacity limits Marvell announced for the new controllers; this is not an independent product test.

| Product specification | Value |
|---|---|
| DDR4/DDR5 memory channels per controller | 6 |

Sources: <https://investor.marvell.com/news-events/press-releases/detail/1037/marvell-unveils-second-generation-structera-x-industry-first-six-channel-cxl-3-2-memory-expanders-for-ai-inference> · Download data: [JSON](https://newsverum.com/api/v1/articles/marvell-unveils-six-channel-cxl-memory-expanders-for-ai-inference/data/product-specifications?lang=en&format=json) · [CSV](https://newsverum.com/api/v1/articles/marvell-unveils-six-channel-cxl-memory-expanders-for-ai-inference/data/product-specifications?lang=en&format=csv)

## Sources

- [Marvell Technology](<https://investor.marvell.com/news-events/press-releases/detail/1037/marvell-unveils-second-generation-structera-x-industry-first-six-channel-cxl-3-2-memory-expanders-for-ai-inference>) (Source checked: 2026-10-13; Published: 2026-10-12)

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