EX-SFP-1GE-SX-EXT Juniper Compatible 1G SFP SX 550m MMF Transceiver

The EX-SFP-1GE-SX-EXT is a 1G SFP optical transceiver engineered as a drop-in equivalent for Juniper platforms, programmed to the host EEPROM so it comes up as a native module with no configuration required.

• Form Factor: SFP
• Data Rate: 1G
• Protocol: SX
• Fiber Type: MMF
• Reach: 550m
• Connector: Duplex LC
• OEM Equivalent: EX-SFP-1GE-SX-EXT

Compatibility: Documented OEM compatibility (Juniper published compatibility documentation): this module is accepted in 1G SFP ports on the ACX Series, EX2300 Series, EX3400 Series, EX4300 Series, EX4400 Series, MX204/MX Series, QFX5120 Series, and SRX 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.

As a 1G short-reach module over multimode fiber, it is the classic access-layer optic for in-building uplinks, IDF-to-MDF runs, and edge-switch aggregation where copper distance falls short. It remains a staple in campus and enterprise networks still running gigabit to the closet over installed multimode. It operates 550m.

It is programmed to present native host values, so it interoperates link-to-link with OEM modules on the far end and coexists with installed optics in the same line card without compatibility flags.

Before shipment every module is coded to the host platform, then verified for protocol conformity, diagnostic accuracy, and end-face cleanliness. Class 1 laser certified, RoHS compliant.

Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In stock and ships same or next business day.