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Cisco GLC-LH-SMD Compatible 1000Base-LX SFP TAA Transceiver Module

Cisco GLC-LH-SMD Compatible 1000Base-LX SFP TAA Transceiver Module

Best price now

$11.99at FluxLightObserved Nov 6, 2026, 4:17 PM

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Our take on the Cisco GLC-LH-SMD Compatible 1000Base-LX SFP TAA Transceiver Module

This is a third-party SFP transceiver built to work in place of the Cisco GLC-LH-SMD: 1000Base-LX over single-mode fiber, 1310nm, up to 10km, dual-LC connector. It supports DDM, draws under 1W and is TAA-compliant, which matters for government and education buyers. At $11.99 at FluxLight as of November 6, 2026, it sits at the low end of what compatible LX modules cost; genuine Cisco units run many times more.

Best forReplacing a failed Cisco GLC-LH-SMD on a budgetGovernment or education buyers needing TAA complianceSingle-mode links up to 10km between switchesSpare modules for network closets
Pros
  • 10km reach over single-mode fiber at 1310nm
  • DDM support for reading optical levels remotely
  • Under 1W power draw
  • TAA-compliant for public-sector procurement
  • Dual-LC UPC connector fits standard SMF patch panels
Cons
  • Third-party module, not Cisco-branded, so Cisco support may decline to troubleshoot it
  • Some Cisco IOS versions flag non-Cisco SFPs or need the unsupported-transceiver command
  • No published compatibility list beyond Cisco in the listing
  • Only one store prices it new, so little price competition

Cisco GLC-LH-SMD Compatible 1000Base-LX SFP TAA Transceiver Module prices at every store

  • FluxLightNew

    In stock

    $11.99Observed Nov 6, 2026, 4:17 PM
    Visit FluxLight

Cisco GLC-LH-SMD Compatible 1000Base-LX SFP TAA Transceiver Module price history

Lowest price we've seen: $11.99 on Nov 6 at FluxLight. Tracked across 1 store since Nov 6.

Specifications

Form Factor
SFP
TX Wavelength
1310nm
Interface Type
LX
Reach
10km
Connector
Dual-LC
Cable Type
SMF
Temperature
(COM) 0°C to +70 °C
Standard / Protocol
IEEE 802.3 1000BASE-LX
RX Wavelength
1310nm
Connector Type
Duplex LC (UPC)
Power Consumption
< 1.0 W
Operating Temperature
−5°C to +85°C (EXT)

Questions and answers

Will this work in a Cisco switch?
It is coded for Cisco and follows the 1000Base-LX standard, so it should link in most Cisco SFP ports. Some IOS versions show a non-Cisco warning or need the service unsupported-transceiver command.
What fiber and distance does it support?
Single-mode fiber with dual-LC UPC connectors, up to 10km at 1310nm. It will not run over multimode fiber without mode-conditioning hardware.
Is it really TAA compliant?
The listing states TAA compliance, which is what government and education buyers need. Ask the seller for the country-of-origin documentation before a formal procurement.
How is it different from a genuine Cisco GLC-LH-SMD?
Same 1000Base-LX, 1310nm, 10km spec and DDM, but it is not Cisco-branded and costs a fraction of the genuine part. Cisco TAC may not support it.
Does it support digital diagnostics?
Yes, DDM is enabled, so you can read TX/RX power and temperature from the switch.
What is in the box?
One SFP module. Fiber patch cables are not included.
Where is the Cisco GLC-LH-SMD Compatible 1000Base-LX SFP TAA Transceiver Module cheapest?
At FluxLight, for $11.99, as of our latest check.