QSFPP-40GBASE-ER4 Juniper Compatible 40G ER4 40km SMF Transceiver

The QSFPP-40GBASE-ER4 is a 40G SFP+ 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.

• Form Factor: SFP+
• Data Rate: 40G
• Protocol: ER4
• Fiber Type: SMF
• Reach: 40km
• Connector: Duplex LC
• OEM Equivalent: QSFPP-40GBASE-ER4

Extended-reach optics push single-mode links out to metro distances, connecting sites across a city or campus where standard long-reach modules run out of optical budget. It is the right tool when the span is too far for an LR but does not yet justify coherent line-side gear. It operates 40km.

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