The JNP-QSFP-40G-LX4 is a 40G QSFP 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.
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Form Factor: QSFP
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Data Rate: 40G
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Protocol: LX4
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Fiber Type: MMF
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Reach: 2km
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Connector: Duplex LC
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OEM Equivalent: JNP-QSFP-40G-LX4
Compatibility: Documented OEM compatibility (Juniper published compatibility documentation): this module is accepted in 40G QSFP+ ports on the EX3400 Series, EX4600 Series, EX4650 Series, PTX10000 Series, QFX10000 Series, QFX5100 Series, and QFX5120 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.
This 1G single-mode optic covers campus backbones and metro access runs, the dependable choice for linking distributed sites and aggregation switches over existing single-mode fiber. Where multimode tops out, it extends gigabit reach across the campus without touching the host or the cabling plan. It operates 2km.
Coded to the host EEPROM, it comes up as a genuine module: full diagnostic visibility, no compatibility warnings, and side-by-side operation with optics already in the chassis.
We program each module to the Juniper host EEPROM and run it through traffic, DOM, and optical-cleanliness checks before it ships. Class 1 laser certified and RoHS compliant.
Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In stock and ships same or next business day.
