New USFP Pluggable Optics Form Factor for Higher Speeds from Cisco and NVIDIA

New USFP Pluggable Optics Form Factor for Higher Speeds from Cisco and NVIDIA

By Patrick Kennedy
Publication Date: 2026-10-13 13:00:00

2026 Cisco AI Infrastructure OCP Pre-Briefing Final Slide 10: Cisco and NVIDIA USFP 400G optics

Ahead of the OCP Global Summit, Cisco briefed analysts on AI-infrastructure announcements spanning optics, silicon, systems, and software. For us, the headline is clearly the ultra-dense small form factor, or USFP, a pluggable module Cisco developed with NVIDIA for 400G SerDes lanes, which it says enabling higher-density 1.6Tbps fabrics. Cisco also detailed the Silicon One G300 in first systems, a G302 front-end top-of-rack switch coming in Q4 2026, and the Silicon One A100L aimed at lower-cost 10G/1G out-of-band management switches. USFP will be a big one with both Cisco and NVIDIA behind it and because next-generation pluggable optics are a key part of the 1.6Tbps Ethernet generation. To me, the A100L stood out on the briefing call since Cisco’s custom silicon applied to cost-sensitive switching rather than only the high-performance fabric.

Cisco OCP AI…