✦ The 1.6-Terabit GenerationWide moat

The optical interconnect market is moving to 1.6 terabits per second per port, and the transition matters more to Marvell than a doubling of speed normally would. At each new rate the signal-integrity problem worsens disproportionately — noise, power and manufacturing tolerance all deteriorate faster than the data rate rises — so the number of companies capable of shipping a working digital signal processor shrinks rather than grows.

That is the unusual property of this franchise: it is a moat that deepens with each generation, provided Marvell keeps arriving first. Module makers design around whatever high-speed DSP is available when they need it and rarely change mid-generation, so being early at a new rate converts directly into a multi-year revenue position — the pattern that carried data-center revenue past $6 billion in fiscal 2026¹.

The offsetting risk is architectural rather than competitive, and it is covered in the moat pages: if co-packaged optics displaces the pluggable module at the highest speeds, some of this opportunity moves inside someone else's package. Watch time-to-market at 1.6T against Broadcom and the specialists, and watch the pluggable-versus-co-packaged mix in new deployments. Both are visible well before they show up in revenue.