Page Loading  Loading... Please wait...


  • GLC-LH-SM Cisco Compatible SFP Transceiver


Your Price:
$34.00 (You save $30.60)
0.10 LBS
In stock

* Quantity/Educ/Govt Discounts Available *
Click Request a Quote in upper right hand corner

3 year warranty on transceivers and other products Free shipping on fiber optic components 30 day guarantee on optical transceivers

Product Description

TheGLC-LH-SM is a Cisco® 1000Base SFP Optical Transceiver. FluxLight’s GLC-LH-SM transceivers perform identically to Cisco® brand transceivers. Our transceivers are programmed with the same data as Cisco transceivers, making them fully compatible with OEM networking equipment. FluxLight’s GLC-LH-SM is 100% Multi-Source Agreement compliant, allowing it to also function with other third party MSA compliant networking equipment. All of FluxLight's transceivers are tested for 100% functionality and guaranteed compatible for outstanding network performance.

This 1000BASE SFP optical transceiver is capable of transmitting data at speeds of up to 1.25Gb/s over 10km on singlemode fiber optic cable. The GLC-LH-SM uses an efficient 3.3 volt power supply and is designed to work best in temperatures between 0°C and 50°C. The GLC-LH-SM’s Class 1 Laser operates at a wavelength of 1310nm.

FluxLight carries optical transceivers compatible with all major brands in a variety of form factors. We are sure to have a transceiver that meets your fiber optic networking needs. We guarantee 100% compatibility for all of our transceiver products, and back it up with a 30-day money back guarantee, a 3-year non-prorated warranty, and free email/phone technical support. Now you have a reliable, compatible and affordable means to expand your network while maintaining its integrity.


Mfg. Compatibility: Cisco®
Part Number: GLC-LH-SM
Form Factor: SFP
TX Wavelength: 1310nm
Reach: 10km
Cable Type: singlemode fiber
Rate Category: 1000Base
Interface Type: LX
Digital Optical Mon. (DOM): No
Connector Type: Dual-LC

Full downloadable spec sheet: GLC-LH-SM

Similar Models:

In addition to the GLC-LH-SM, FluxLight carries other similar Cisco® compatible transceivers, including the: GLC-LH-SM-E, GLC-LH-SMD, GLC-LH-SM-20, and the GLC-LH-SM-40. Each of these models is an SFP 1000Base transceiver. Of special note is the GLC-LX-SM-RGD which is the “rugged” grade version of the GLC-LH-SM, meaning it is better suited for industrial networking applications where conditions may be more harsh. The table below outlines some of the other key differences between these transceivers:

 Max ReachCable TypeInterface TypeTx WavelengthTemperature RangeDOM/DDM
GLC-LH-SM 10 Kilometers Singlemode LX 1310nm Standard No
GLC-LX-SM-RGD 10 Kilometers Singlemode LX 1310nm Industrial No
GLC-LH-SMD 10 Kilometers Singlemode LH 1310nm Standard Yes
GLC-LH-SM-20 20 Kilometers Singlemode LX20 1310nm Standard No
GLC-LH-SM-40 40 Kilometers Singlemode LX 1310nm Standard No

Warranty Information

Like all FluxLight products, this product this backed by a 3-year non-prorated warranty, free email/phone technical support and advanced replacement (with RMA) and guaranteed emergency spares.

Write your own product review

Showing reviews 1-10 of 32 | Next

  1. Rock solid, and affordable 5 Star Review

    Posted by on 07/03/2014

    I have purchased more than 2 dozen of these and they just work as expected with no muss, no fuss.

  2. Work great in 2960-X 5 Star Review

    Posted by on 05/28/2014

    Just installed them but so far so good in a 2960-X 24 port switch. Can't beat the price.

  3. Worked Like a Charm 5 Star Review

    Posted by on 10/07/2013

    Works as it should. Installed in a Cisco 3750 and a 3560 both worked great.

    Great price for a temp solution until we move to 10Gb

  4. great product 5 Star Review

    Posted by on 09/05/2013

    great product with no issues. Customer service with Flux Light was outstanding!

  5. Delivered 3 Star Review

    Posted by on 08/31/2013

    Very impressed with the speed of delivery. Devices perform as expected.

  6. Great Optical Quality with GLC-LH-SM 5 Star Review

    Posted by on 08/02/2013

    The GLC-LH-SM has been a good improvement for our network. Rated for 10km but we got a 15km link up and running steady with zero bit errors with this Fluxlight part!

  7. Easy to Install GLC-LH-SM 5 Star Review

    Posted by on 08/02/2013

    I'm more than pleased with this GLC-LH-SM. It was very easy to install. The old module gave us some trouble coming out of the port, so we were worried that the new one might not fit properly. It went in smoothly, though. It works really well, too, with great range for the protocol.

  8. GLC-LH-SM is a Huge Upgrade 5 Star Review

    Posted by on 07/26/2013

    The GLC-LH-SM is a great transceiver for any situation! I upgraded recently upgraded from my GBIC and what a huge difference. Definitely much faster, more effective performance. Overall, my network works beautifully with these products. Grateful to Fluxlight for their good finds!

  9. Single Mode GLC-LH-SM Does the Trick 5 Star Review

    Posted by on 07/09/2013

    I've really gotten a lot of use out of the GLC-LH-SM. It's a single mode device, so it's compatible with a lot of different services. I like that it interfaces with most other name brands too. FluxLight wasn't a brand I was aware of until I used the GLC-LH-SM, but it works really well.

  10. Got What I Wanted with GLC-LH-SM 5 Star Review

    Posted by on 07/03/2013

    The GLC-LH-SM is an efficient little transceiver. It's one of my favorites for building new PCs. That's because it has a great balance between usability and price. Especially here, the GLC-LH-SM is a really cost-effective solution. Good networking starts with the GLC-LH-SM in my opinion.

Showing reviews 1-10 of 32 | Next