JNP-QSFPDD-400G-LR4 Juniper Compatible 400G QSFP-DD LR4 Transceiver

The JNP-QSFPDD-400G-LR4 is a 400G QSFP-DD optical transceiver engineered as a drop-in equivalent for Juniper platforms, programmed to the host EEPROM so it comes up as a native module with no configuration required.

• Form Factor: QSFP-DD
• Data Rate: 400G
• Protocol: LR4
• Fiber Type: SMF
• Reach: 10km
• Connector: Duplex LC
• OEM Equivalent: JNP-QSFPDD-400G-LR4

As a parallel, multi-lane optic, this module anchors high-density spine-leaf fabrics and breakout topologies, aggregating several lanes into a single high-speed port. It is a backbone component of modern data-center and AI-cluster builds, where port density and bandwidth per rack-unit are the limiting factors. It operates 10km.

It is programmed to present native host values, so it interoperates link-to-link with OEM modules on the far end and coexists with installed optics in the same line card without compatibility flags.

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® lifetime warranty — buy it once, covered forever. In stock and ships same or next business day.