Juniper Networks
QSFP+ 40GBASE-LR4 40 GIGABIT OPTICS 1310NM FOR UP TO 10KM TRANS
Out of Stock
Juniper JNP-QSFP-40G-LR4 40G QSFP+ 1310 nm 10 km | Enterprise Optics
Juniper Networks
MPN: JNP-QSFP-40G-LR4
$3,665.20$4,760.00
Free shipping on orders over $500
Authorized Dealer — Full manufacturer warranty
Key Features
- QSFP+ form factor
- 40GBASE-LR4 Ethernet
- 1310 nm wavelength
- Up to 10 km reach
- Single-mode fiber support
- LC duplex connector
- 40 Gbps data rate
- Juniper Networks MPN: JNP-QSFP-40G-LR4
Keep high-speed links stable across longer fiber runs with Juniper’s QSFP+ 40GBASE-LR4 transceiver. Designed for 40 GbE deployments that need more reach than short-range optics can provide, this module operates at 1310 nm over single-mode fiber and supports distances up to 10 km.
That makes it a strong fit for inter-building connections, campus backbones, and data center aggregation layers where link budget and signal integrity matter. The LR4 design is built for environments that need dependable transport between switching tiers without moving to a more expensive transport platform.
For teams standardizing on Juniper infrastructure, this transceiver helps preserve compatibility and simplify procurement across production networks. It is a practical choice when you need long-reach 40 GbE optics that align with enterprise fiber plant design and support predictable performance over distance.
Ideal For
- Inter-building 40 GbE uplinks between campus switches
- Data center aggregation links requiring 10 km optical reach
- Long-reach backbone connections over single-mode fiber
- Juniper switching environments standardizing on vendor-qualified optics
Why This Product
- 1Longer reach than SR4 optics for campus and inter-building links
- 2Single-mode 1310 nm design for 10 km transport
- 3Vendor-aligned Juniper transceiver for infrastructure standardization
- 440 GbE throughput for aggregation and backbone deployments


