Juniper QFX-SFP-1GE-LX 1GbE SFP 1310 nm 10 km | Gigabit Ethernet, SMF

Keep long-distance Ethernet links stable with the Juniper QFX-SFP-1GE-LX SFP module. Designed for 1000BASE-LX deployments, it delivers Gigabit Ethernet over single-mode fiber with 1310 nm optics and support for distances up to 10 km. That makes it a practical choice for campus backbones, building interconnects, and aggregation layers where copper falls short and short-reach optics are not enough. This module is built for environments that need predictable link performance and straightforward interoperability within Juniper switching platforms. Its single-port SFP form factor keeps density high while preserving the flexibility to match fiber infrastructure to the application. For teams standardizing on fiber uplinks, the LX profile offers the reach needed for distributed closets, remote wiring rooms, and longer switch-to-switch paths without moving to a more expensive optical class than the network requires. Use it when the priority is dependable 1 GbE transport over single-mode fiber, not excess bandwidth or unnecessary complexity. The result is a focused transceiver that supports the link distance, wavelength, and interface type your infrastructure already expects.