USFP

Headlines · 2

1. 2d
   Nvidia and Cisco unveil USFP optical interface with 400Gb/s per lane

   Nvidia and Cisco announced USFP (Ultra-Dense Small Form Factor Pluggable), a new optical transceiver interface for AI data centers, at the 2026 OCP Global Summit; Cisco says it is the first such interface to support 400Gb/s per lane, twice the current 200Gb/s-per-lane designs. The first modules are expected to use 16 full-duplex lanes in an octal small form factor footprint, giving a theoretical 6.4Tb/s total, with later designs expanding to 32 or more lanes and a planned 12.8Tb/s total that still requires further development and validation. The companies claim four times the bandwidth density of 200Gb/s-per-lane optics and about a 1.3x improvement in power efficiency, support for both switches and Nvidia SuperNIC adapters over RoCE, a two-step insertion design for signal integrity, and up to 100 watts of power dissipation without a dedicated internal cooling circuit; TE Connectivity and Amphenol are among partners building cages, connectors and modules.

   TechSpot · 🔥 7
2. 5d
   NVIDIA, Cisco unveil USFP pluggable optics spec for 400Gb/s AI fabrics

   NVIDIA and Cisco announced Ultra-Dense Small Form Factor Pluggable (USFP), which they describe as the first pluggable optical module designed for 400Gb/s-per-lane electrical signals and capable of up to 12.8Tb/s total capacity. First planned transceivers pack 16 full-duplex lanes into an OSFP-sized footprint for switches and SuperNICs, with expansion to 32 or more lanes planned; the companies claim 4x bandwidth density and roughly 1.3x power efficiency versus 200Gb/s-per-lane pluggable modules. They are working with TE Connectivity and Amphenol on cages, connectors and modules, and plan an open industry specification through a community-led multi-source project.

   NVIDIA Newsroom · 🔥 0

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