The QSFP-100G-ER4L is a 100G QSFP28 optical transceiver engineered as a drop-in equivalent for Juniper platforms,, a like-for-like replacement that the host accepts as native, hot-swappable and ready out of the box.
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Form Factor: QSFP28
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Data Rate: 100G
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Protocol: ER4
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Fiber Type: SMF
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Reach: 30km
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Connector: Duplex LC
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OEM Equivalent: QSFP-100G-ER4L
Compatibility: Documented OEM compatibility (Juniper published compatibility documentation): this module is accepted in 100G QSFP28 ports on the ACX Series, EX4650 Series, MX204/MX Series, PTX10000 Series, QFX10000 Series, QFX5120 Series, QFX5130 Series, and QFX5200 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.
It is qualified against Juniper host platforms and tested end to end so it behaves exactly as the OEM module it replaces, slotting into existing designs without surprises. The result is a like-for-like swap that protects the original network design while removing OEM-optics cost from the bill of materials. It operates 30km.
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.
Each unit is programmed to match Juniper host values and bench-tested for traffic conformity, DOM-threshold accuracy, and optical cleanliness before it leaves the bench. Class 1 laser certified and 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.
