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Linksys MFELX1 Compatible 100Base-LX SFP Transceiver Module

Linksys MFELX1 Compatible 100Base-LX SFP Transceiver Module

Best price now

$54.00at FluxLightObserved Nov 6, 2026, 4:17 PM

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Our take on the Linksys MFELX1 Compatible 100Base-LX SFP Transceiver Module

This is a third-party replacement for the Linksys MFELX1 SFP transceiver: a 100Base-LX module with a 1310nm transmitter, dual-LC connector and 15km reach over single-mode fiber. It is a plug-in part for linking switches, routers or media converters across a campus or between buildings, not for multimode cabling. It has no digital diagnostics (DDM), so you cannot read its optical levels remotely. At $54.00 at FluxLight as of November 6, 2026, it is the only new price listed, so there is no recent range to compare against.

Best forReplacing a failed or missing Linksys MFELX1 portSingle-mode fiber runs up to 15km between buildingsSites that need a cheap spare SFP on hand100Mbps fiber links where gigabit is not required
Pros
  • 15km reach covers long single-mode runs
  • Standard dual-LC connector fits common patch panels
  • 1310nm LX wavelength matches typical 100Base-LX links
  • Runs in 0°C to +70°C commercial environments
  • Direct MFELX1 compatibility claim simplifies matching
Cons
  • No DDM, so no remote optical monitoring
  • 100Mbps only, not gigabit
  • Single-mode fiber only; will not work over multimode
  • Not TAA compliant, which rules out some government buys
  • Third-party module, so vendor support comes from FluxLight, not Linksys

Linksys MFELX1 Compatible 100Base-LX SFP Transceiver Module prices at every store

  • FluxLightNew

    In stock

    $54.00Observed Nov 6, 2026, 4:17 PM
    Visit FluxLight

Linksys MFELX1 Compatible 100Base-LX SFP Transceiver Module price history

Lowest price we've seen: $54.00 on Nov 6 at FluxLight. Tracked across 1 store since Nov 6.

Specifications

Form Factor
SFP
Interface Type
LX
TX Wavelength
1310nm
Reach
15km
Cable Type
SMF
Connector
Dual-LC
Temperature
(COM) 0°C to +70 °C

Questions and answers

Will this work in a Linksys switch that takes an MFELX1?
It is sold as an MFELX1-compatible module, so it is meant to drop into the same SFP slot. Confirm your device lists 100Base-LX SFP support before buying.
What fiber and connectors do I need?
Single-mode fiber with dual-LC connectors. Multimode cable will not work with this LX module.
How far can the link run?
Up to 15km over single-mode fiber, which is far more than most in-building runs need.
Can I monitor the link's optical power?
No. This module has no DDM, so you cannot read transmit or receive levels through the switch.
Is it TAA compliant?
No. If your purchase requires TAA compliance, this module does not qualify.
Is $54 a good price?
It is the only new price listed as of November 6, 2026, so there is no recent range to judge it against. Compare it with other MFELX1-compatible modules before deciding.
Where is the Linksys MFELX1 Compatible 100Base-LX SFP Transceiver Module cheapest?
At FluxLight, for $54.00, as of our latest check.