JNP-QSFP-40G-LR4 Juniper Compatible 40G QSFP+ LR4 10km SMF Transceiver

Stepping in like-for-like, the JNP-QSFP-40G-LR4 carries 40G at 1310nm over 10km of single-mode fiber in the QSFP+ form factor, matching the Juniper LR4 optic it replaces on both reach and wavelength. It seats in the same QSFP+ cage through a duplex LC interface and comes up on the host as a recognized module with no configuration required.

• Form Factor: QSFP+
• Data Rate: 40G
• Protocol: LR4
• Wavelength: 1310nm
• Fiber Type: SMF
• Reach: 10km
• Connector: Duplex LC
• OEM Equivalent: JNP-QSFP-40G-LR4

Compatibility: Compatible with Juniper platforms — 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.

Validated for Juniper switching and routing, it holds the 1310nm LR4 link across the full 10km span the original design assumes. Built to MSA specification and individually verified before it ships. Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In-stock items ship same or next business day.