TIFNEX catalog
800G and 1.6T transceivers
800G and 1.6T OSFP optics for NVIDIA InfiniBand NDR/XDR and 800G Ethernet AI fabrics.
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Buying guide
800G and 1.6T transceivers from TIFNEX
800G twin-port OSFP modules are the building block of today's GPU clusters. TIFNEX supplies 800G 2xSR4 and SR8 (multimode, 50m to 100m), 2xDR4 and DR8 (500m single-mode), 2xFR4 (2km) and LR modules, in both finned-top (for switches) and flat-top (for adapters) versions. 1.6T OSFP224 modules are available for next-generation XDR and 1.6T Ethernet.
Most modules are coded for NVIDIA Quantum-2 and Spectrum-4 switches and ConnectX-7 adapters, with Arista, Cisco, Dell and Juniper options. Read our AI data center networking guide to see how 800G fabrics are laid out, and pair the optics with MPO-8 and MPO-12 APC trunks.
Common questions
What is a twin-port 800G OSFP transceiver?
It is one OSFP module with two independent 400G optical interfaces, for example 2 x 400G SR4 or 2 x 400G DR4. It is used on NVIDIA Quantum-2 and Spectrum-4 switches.
What is the difference between finned-top and flat-top OSFP?
Finned-top modules have an integrated heat sink and go into switches. Flat-top modules are used in adapters and systems that provide their own cooling.
Which fiber do 800G 2xDR4 modules need?
Single-mode fiber with two MPO-12 APC connectors, supporting up to 500m per link.
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