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The twin-port transceiver is a key innovation for expanding the 400GbE Spectrum-4 Ethernet (400G EN) switch capabilities. The line rate is 400Gb/s based on the 100G-PAM4 modulation.
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The NVIDIA MMA4Z00-NS-T is an Ethernet 800Gb/s (2x400Gb/s) Twin-port OSFP, SR8 multimode, parallel, 8-channel transceiver using two, 4-channel MPO-12/APC optical connectors at 400Gb/s each. The parallel multimode, short reach 8-channel uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using 8 multimode fibers. The 50-meter length assumes two optical patch panels in the link.
The Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMA4Z00-NS-T is linking two switches together with up to 50-meter transceivers (marked blue).
The transceiver combinations guarantee optimal operation in NVIDIA end-to-end systems and customer networking solutions. Rigorous production testing ensures the best out-of-the-box installation experience, performance, and durability.
Finned Top Transceiver

Images are for illustration purposes only. Product labels, colors, and lengths may vary.
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