GLOBALfiber Q400G-112-SR4 is a 400G QSFP112 SR4 optical transceiver for short multimode data centre connections up to 50 m on OM4 fiber. Its four PAM4 optical lanes use an MPO-12/APC interface for supported Ethernet and InfiniBand NDR links.
Available coding and compatibility
Available coding: Arista, Cisco, Generic, H3C, Juniper, SuperMicro. Provide the equipment model, port configuration and software version so support can be checked. Available coding does not confirm compatibility with every model. Ethernet coding does not establish InfiniBand support. For other coding requirements, contact salg@globalfiber.no.
Key specifications
| Specification | Details |
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| Product number | Q400G-112-SR4 |
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| Form factor | QSFP112 |
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| Capacity | 400G |
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| Applications | 400GBASE-SR4 Ethernet; InfiniBand NDR. Host and coding support required for the intended protocol. |
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| Power dissipation | 9 W maximum |
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| Reach and fiber | Up to 50 m over OM4 multimode fiber |
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| Nominal wavelength | 850 nm |
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| Optical connectors | MPO-12/APC |
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| Diagnostics | Digital optical monitoring (DOM/DDM) |
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Installation requirements
Confirm the host cooling arrangement and MPO fiber polarity before installation. Check the required FEC settings and port mode for the intended protocol.