10309 Extreme Compatible 10G SFP ER 40km SMF Transceiver

On Extreme Networks switching, the 10309 presents as a native 10G ER optic, coming up on the host EEPROM as a recognized module with no configuration step. It is an SFP-form ER transceiver reaching 40km over single-mode fiber, terminated in a duplex LC interface, and it reports live DDM telemetry once the link is established. Every unit is bench-verified against the compatible Extreme part before it is boxed. Built to MSA specification, it drops into the existing cage and negotiates the link exactly as the original would. Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. Stocked and ready to go — orders ship same or next business day.

• Form Factor: SFP
• Data Rate: 10G
• Protocol: ER
• Fiber Type: SMF
• Reach: 40km
• Connector: Duplex LC
• OEM Equivalent: 10309

Compatibility: Documented OEM compatibility (Extreme published compatibility documentation): this module is accepted in 10G SFP+ ports on the ExtremeSwitching 5320 Series, ExtremeSwitching 5520 Series, ExtremeSwitching X440-G2 Series, ExtremeSwitching X620 Series, ExtremeSwitching X670-G2 Series, ExtremeSwitching X690 Series, SLX 9540, and SLX 9640. This module follows Extreme'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.

The 40km ER window and single-mode build make this the drop-in choice where an Extreme port has to carry 10G past the reach of shorter-range optics without touching the rest of the design.