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

Compatibility: Documented OEM compatibility (Juniper published compatibility documentation): this module is accepted in 400G QSFP-DD ports on the ACX7100 (ACX Series), MX10004/MX10008 (MX Series), PTX10000 Series, QFX5130 Series, QFX5220 Series, and QFX5700 Series. This module follows Juniper's published compatibility matrix; for your exact line card or OS release, 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.

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® Limited Lifetime Replacement Warranty. In stock and ships same or next business day.