Juniper QDD-400G-ZR-M Compatible 400G QSFP-DD ZR+ 80km SMF Transceiver Module

The QDD-400G-ZR-M is a 400G optical transceiver engineered as a drop-in equivalent for Juniper platforms, recognized by the host as a genuine module and ready to pass traffic the moment it seats with no CLI changes.

• Data Rate: 400G
• Fiber Type: SMF
• Reach: 80km
• Connector: LC/UPC

This is a long-haul single-mode optic for inter-site and metro-area spans, reaching distances at the edge of what a client-side module can drive on its own. It is typically deployed point-to-point between facilities where dark fiber is available and the optical path can be engineered. It operates 80km.

Qualified Juniper hosts — Juniper documents the ZR-M as its Open ZR+ MSA-compliant 400G coherent module, supported across its 400GbE-ready platforms per Juniper's JCO400 coherent optics datasheet and Junos documentation:

Documented requirement: Juniper documents that use of 400ZR and 400G OpenZR+ coherent transceivers in Juniper systems requires a corresponding feature license. Per-model support varies — confirm your exact platform and Junos release before ordering: email 10.4@tenfouroptics.com and we'll confirm fit.

Tested & Proven: Every TenFour Optics part is coded, tested, and verified before shipment — see Tested & Proven.

Because it is coded to the Juniper host platform, the switch or router reads it as a factory module — clean in diagnostics, free to mix with OEM and other compatible optics in the same chassis, and needing no firmware exceptions.

Before shipment every module is coded to the host platform, then verified for protocol conformity, diagnostic accuracy, and end-face cleanliness. Class 1 laser certified, RoHS compliant.

Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In-stock items ship same or next business day — contact 10.4@tenfouroptics.com to confirm availability and lead time.