GLOBALfiber QDD-400G-LR4 is a 400G QSFP-DD LR4 optical transceiver for single-mode connections up to 10 km. Four wavelength lanes carry the link through duplex LC fiber, supporting data centre interconnections that extend beyond FR4 reach.
Available coding and compatibility
Available coding: Arista, Cisco, Extreme, Fortinet, Generic, Juniper, NVIDIA(ETH). Provide the equipment model, port configuration and software version so support can be checked. Available coding does not confirm compatibility with every model or operating mode. For other coding requirements, contact salg@globalfiber.no.
Key specifications
| Specification | Details |
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| Product number | QDD-400G-LR4 |
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| Form factor | QSFP-DD |
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| Capacity | 400G |
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| Applications | 400GBASE-LR4 Ethernet; data centre interconnect |
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| Reach and fiber | Up to 10 km over single-mode fiber |
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| Nominal wavelength | 1310 nm nominal; four wavelength lanes |
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| Optical connectors | Duplex LC |
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Installation requirements
Check the host cooling arrangement, power budget and port configuration before installation. Verify the fiber connection and FEC settings for the intended link.