Marvell Structera S 60260 — 260-Lane PCIe 6.0 Scale-Up Switch

Specifications

Overview

The Marvell Structera S 60260 is the industry's first 260-lane PCIe 6.0 switch and the highest-radix PCIe switch announced to date. It roughly doubles the lane density of competing devices, which matters because modern AI servers pack more GPUs and accelerators behind a single PCIe scale-up fabric than ever before. Consolidating that fabric onto one 260-lane device avoids the power, latency, board complexity and total cost of ownership penalties that come from stacking multiple smaller switches.

The part builds on Marvell's acquisition of XConn Technologies, which had been shipping 256-lane PCIe 5.0 switches since 2022. Marvell pairs it with its Alaska P PCIe retimer line to form an end-to-end PCIe portfolio: combining the switch with retimers lets AEC partners extend PCIe 6.0 reach to seven meters and AOC partners go beyond that. The Structera S 60260 is also drop-in and pin-compatible with Marvell's Structera S CXL 3.0 switch offerings, so a single hardware platform can serve both PCIe and CXL designs and reduce development cycles.

For AI infrastructure, the switch is a building block for scale-up connectivity between accelerators, GPUs, XPUs, CPUs, SSDs and CXL devices within a server or cluster. It began sampling to customers in calendar Q3 2026, with engineering test samples available and demonstrated live at OFC 2026.

Key Benefits

Highest radix at 260 lanes in a single PCIe 6.0 device, ~2x competing lane density. Fewer devices cuts power, latency and board complexity in scale-up fabrics. PCIe + CXL on one platform via pin-compatible CXL 3.0 switch. Reach extension to 7 m over AEC when paired with Alaska P retimers.

Applications

AI server and rack scale-up fabrics, GPU and accelerator interconnect within a chassis, SSD and CXL device fan-out, high-throughput computing clusters, and next-generation AI/ML training systems that need higher-radix PCIe switching per rack unit.

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