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400G QSFP-DD

400G QSFP-DD SR8 Transceiver QSFP-DD-400G-SR8

400GBASE-SR8 · 850nm · Multimode (MMF) · MPO · 100m

Compatible with major switch brands — share your equipment model to confirm coding before ordering. 3-year warranty included.

Module overview

  • Hot-pluggable QSFP-DD MSA form factor
  • DDM digital diagnostics for TX/RX monitoring
  • MPO optical interface for parallel fiber links
  • 3-year warranty · free technical support
  • Coding confirmed against your switch model

The 400GBASE-SR8 QSFP-DD transceiver delivers 400 Gbps over multimode fiber (MMF) through an MPO interface, up to 100 m. It is hot-pluggable, QSFP-DD MSA-compliant, and supports DDM digital diagnostics.

Typical deployments

400G QSFP-DD is the current spine and AI-fabric building block, packing eight lanes into a double-density QSFP slot. SR8 and DR4 use MPO multimode to 500 m; FR4 and LR4 use LC single-mode up to 10 km.

Before you order

MPO links are polarity-sensitive: confirm the MPO polarity and fiber count match your patch panel before installation, and clean both end faces. Share your switch model and port type so we confirm the coding for your equipment; every module ships with a 3-year warranty and free technical support.

Specifications

Model / Part NumberQSFP-DD-400G-SR8
Ethernet Standard400GBASE-SR8
Data Rate400G
Wavelength850 nm
Fiber TypeMultimode (MMF)
ConnectorMPO
Max Reach100m
Form FactorQSFP-DD
DDM supportYes