# FS Pairs 1.6T Scale-Out Optics With 500 km Coherent Modules and a Handheld Toolkit for AI Fabrics

DevFeed: [FS Pairs 1.6T Scale-Out Optics With 500 km Coherent Modules and a Handheld Toolkit for AI Fabrics](<https://devfeed.tech/articles/fs-pairs-1-6t-scale-out-optics-with-500-km-coherent-modules-and-a-handheld-toolkit-for-ai-fabrics-17434.md>)

Original publisher: [Read original article](<https://www.storagereview.com/news/fs-pairs-1-6t-scale-out-optics-with-500-km-coherent-modules-and-a-handheld-toolkit-for-ai-fabrics>)

Author: Harold Fritts

Published: 2026-09-14T17:34:25Z

Content type: news

Language: en

Sources: [StorageReview.com](<https://devfeed.tech/sources/storagereview-com.md>)

Topics: [GPU](<https://devfeed.tech/topics/gpu.md>), [InfiniBand](<https://devfeed.tech/topics/infiniband.md>), [Networks](<https://devfeed.tech/topics/networks.md>), [Ethernet](<https://devfeed.tech/topics/ethernet.md>), [datacenter](<https://devfeed.tech/topics/datacenter.md>), [Nvidia](<https://devfeed.tech/topics/nvidia.md>), [data](<https://devfeed.tech/topics/data.md>)

Tags: [announcement](<https://devfeed.tech/tags/announcement.md>), [data-center](<https://devfeed.tech/tags/data-center.md>), [enterprise](<https://devfeed.tech/tags/enterprise.md>), [ethernet](<https://devfeed.tech/tags/ethernet.md>), [gpu](<https://devfeed.tech/tags/gpu.md>), [infiniband](<https://devfeed.tech/tags/infiniband.md>), [networking](<https://devfeed.tech/tags/networking.md>), [networks](<https://devfeed.tech/tags/networks.md>), [nvidia](<https://devfeed.tech/tags/nvidia.md>)

## AI overview

FS presents a two-part optics portfolio for AI networking: 400G, 800G, and 1.6T Scale-Out transceivers for links within GPU clusters, plus 400G and 800G Scale-Across coherent modules for connecting clusters across sites up to 500 km. The announcement also introduces the BOX 5 Ultra handheld toolkit for configuring, validating, and monitoring transceivers from 100M to 1.6T.

## Source excerpt

FS has organized its AI optics into a two-part portfolio: Scale-Out transceivers at 400G, 800G, and 1.6T for the links inside a GPU cluster, and Scale-Across coherent modules at 400G and 800G for stitching clusters together across sites at distances up to 500 km. The Scale-Out side covers Ethernet, RoCE, and InfiniBand fabrics between GPU The post FS Pairs 1.6T Scale-Out Optics With 500 km Coherent Modules and a Handheld Toolkit for AI Fabrics appeared first on StorageReview.com.