Three scale-up MSAs launched at OFC 2026, and the loudest, XPO, was championed by Arista co-founder Andy Bechtolsheim. But Meta's 90 million hours of data took apart its core selling point. Is XPO a bet on extending pluggables' life, or the real answer?

Arista delivered its strongest cash flow ever, yet management said plainly that "demand is the best, supply is the opposite tale." The AI target was raised to $3.5B, Scale-Across data center interconnect was the biggest surprise, and XPO opens the next decade-long optics race.

After 1.6T there is no single winner: every reach has its own lowest-power answer. Two companies on this panel gave the same number — the reverse gearbox feeding slow-and-wide optics costs 4 pJ/bit, more than the optics themselves. And Oracle's field data pulled the spotlight back to the 4,096 fiber contacts on a front panel.

Pluggable optics are hitting the front-panel limit, not a speed limit. Andy Bechtolsheim sandwiches a cold plate between two paddle cards to shrink 102.4T from 4U to 1U. His only doubt about CPO is attach yield, not the physics, and a Foxconn connector now sampling decides whether XPO works at 400G/lane.

The CPO vs. NPO vs. XPO debate was never about technology; it is about paying down supply-chain risk in installments. This six-way OCP 2026 APAC panel produced one hard deadline: 409.6T switches will push pluggables to the limit in about 18 months, and all four inflection points land on Taiwan's packaging and connector supply chain.

As NVIDIA GPU rack power soars from 120 kW to 600 kW, interconnect technology faces a sweeping overhaul. From Andy Bechtolsheim's XPO vision to Dave Welch's THz dielectric waveguides, who will survive the 1.6T/3.2T race?