TREE NEWS update: Nvidia and Cisco jointly introduced USFP, an ultra-dense small form-factor pluggable optical module specification aimed at scaling AI factory networks. USFP is the first module to support 400Gb/s electrical signaling per lane, with single-module capacity up to 12.8Tb/s, letting AI builders connect more compute systems without adding network tiers while cutting energy per bit. It claims 4x bandwidth density and 1.3x energy efficiency versus existing 200Gb/s-per-lane modules. Nvidia and Cisco are working with TE Connectivity and Amphenol on the ecosystem.
Nvidia, Cisco Launch USFP Pluggable Optical Module Spec for AI Factories
AI take
The significance here is less about raw speed than about network topology: 400Gb/s per lane and 12.8Tb/s per module let AI builders add compute without adding switching tiers, which is where much of the cost, latency and power in large clusters accumulates. Nvidia and Cisco co-authoring the spec, with TE Connectivity and Amphenol already named as ecosystem partners, signals an attempt to establish a default form factor before alternatives consolidate. The open question is whether other system vendors and optics suppliers adopt USFP or back competing pluggable standards.
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