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  • GLC-SX-MM Cisco Compatible SFP Transceiver


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$24.50 (You save $22.05)
0.10 LBS
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3 year warranty on transceivers and other products Free shipping on fiber optic components 30 day guarantee on optical transceivers

Product Description

FluxLight's GLC-SX-MM is a Cisco® compatible 1000Base-SX SFP Optical Transceiver and is factory preprogrammed with the same configuration data as Cisco® OEM modules, allowing for seamless network integration. The GLC-SX-MM is a multimode fiber optic transceiver capable of transfer speeds up to 1.25Gb/s. This particular SFP transceiver is capable of supporting distances up to 220m via 62.5/125µm multimode fiber, and up to 550m via 50/125µm multimode fiber.

FluxLight transceivers perform identically to Cisco® original transceivers and are 100% compatible with other OEM and third party transceivers. The GLC-SX-MM is 100% MSA compliant and meets or exceeds the specifications laid out in the IEEE802.3Z 1000Base-SX standard. All of FluxLight's transceivers are tested for 100% functionality and guaranteed compatible for outstanding network performance.

FluxLight’s GLC-SX-MM optical transceiver modules are designed to function in any MSA compliant SFP port and allow 1000Base-SX devices to interface with fiber networking equipment containing SFP ports. The GLC-SX-MM comes equipped with an IEC60825-1 compliant 850nm Class1 Laser transmitter and an efficient 3.3 volt power supply.

FluxLight offers a large selection of optical transceivers that are compatible with all the major brands. We also carry transceivers in various form factors to meet your networking needs. Now you have a reliable, compatible and affordable means to expand your network while maintaining its integrity.


Mfg. Compatibility: Cisco®
Part Number: GLC-SX-MM
Form Factor: SFP
TX Wavelength: 850nm
Reach: 500m
Cable Type: multimode fiber
Rate Category: 1000Base
Interface Type: SX
Digital Optical Mon. (DOM): No
Connector Type: Dual-LC


Full downloadable spec sheet:  GLC-SX-MM

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 27 | Next

  1. Great product 5 Star Review

    Posted by on 10/14/2014

    These SFPs work perfectly in our Cisco Devices. Price is less than half of what Cisco charges for their brand.

  2. Reliable Multi Mode Connection with GLC-SX-MM 5 Star Review

    Posted by on 08/02/2013

    The GLC-SX-MM is one of the more reliable multi-mode SFP modules I've used. Just a fully compatible replacement for the much more expensive Cisco products version.

  3. Excellent Networking with the GLC-SX-MM Transceiver 5 Star Review

    Posted by on 07/26/2013

    The GLC-SX-MM is one of the best transceivers I've worked with. Incredibly reliable and well built; it should last me for years to come. For hooking up your gigabit Ethernet connection, there's not a better choice. For the price, go with this today!

  4. Multi-Mode 1000Base-SX GLC-SX-MM Transceiver 5 Star Review

    Posted by on 07/09/2013

    The GLC-SX-MM is a wonderfully versatile transceiver. I would have spent much more on a similar Cisco transceiver, but this one works just as well. And it's compatible with Cisco products too, so I don't think we'll lose anything by going for the slightly cheaper route. It doesn't have the highest transfer rate in the world, but it's perfectly fine for most residential applications.

  5. FluxLight Can Built a GLC-SX-MM 5 Star Review

    Posted by on 07/03/2013

    The GLC-SX-MM is proof that FluxLight knows its way around a transceiver. They did a good job of making the device compatible with Cisco products. That makes it a very versatile device. Its hot shoe makes it very easy to install, even for newbies. Good networking at a good price.

  6. Great Deal on GLC-SX-MM 5 Star Review

    Posted by on 07/02/2013

    This GLC-SX-MM is an indispensable product for improved networking. You can get way faster network speeds with this! I've used Cisco products for years, so I'm glad to use compatible parts. This is a really solid piece. Much better than others in the past, and the service was excellent to boot.

  7. GLC-SX-MM Brings the Network to You 5 Star Review

    Posted by on 06/12/2013

    I've been nothing but impressed with the performance of my GLC-SX-MM module. It works with a variety of systems and it's hot-swappable, so it's a good piece of equipment to have around. Different fiber types work, too. I've tried it with both 62.5 micron and 50 micron multimode fibers, with good results.

  8. GLC-SX-MM Device by Cisco 5 Star Review

    Posted by on 06/12/2013

    Cisco knows what it's doing when it comes to networking products, as is clear from the GLC-SX-MM. This transceiver gets the job done on pretty much any machine. Lots of cable combinations are possible with the SFP convertor. The hot-swapping capability is also really convenient.

  9. Cisco-Ready GLC-SX-MM Module 5 Star Review

    Posted by on 06/11/2013

    I get a lot of use out of this GLC-SX-MM module because it's so versatile. I'm glad it works with Cisco gear, as that seems to be the only brand my company will work with. This is a small but essential piece of computer equipment for networking, and I'm glad I could find it so cheaply. Good work on this one, FluxLight.

  10. A really great GLC-SX-MM module 5 Star Review

    Posted by on 06/02/2013

    This is a wonderful GLC-SX-MM module from this site. It works as I thought it would and was a good price. The shipping was good and it came with really satisfactory service. There is really not a thing that is wrong with this, it is all five star from me. I would recommend this site to anyone!

Showing reviews 1-10 of 27 | Next

optical transceiver

Fiber Optic Networking Solutions

Fiber optics is the backbone of telecommunications and data communications. Fiber optic technology, such as an SFP transceiver, enables the high speed transmission of voice, video, and data across service provider and enterprise networks.

The key component in any fiber optic network is the optical transceiver module. This transceiver module is the device responsible for transmitting and receiving data across the network. Optical transceivers, such as SFP transceivers, like our SFP-10G-LR, are typically installed in devices like routers or network interface cards.

FluxLight offers a wide range of optical transceiver modules, including: X2, XENPAK, XFP, GBIC, SFP transceivers and more. We invite you to search for the transceiver you need by form factor, brand or rate (i.e. 10G SFP). We offer transceivers that are compatible with top brands such as Cisco, HP, IBM, Extreme Networks, Linksys, Juniper, Nortel, Force10, D-link, and 3Com.

In addition to transceivers, we also sell fiber optic cables, direct attached cables, fiber jumpers, media converters, and accessories in our online store.

Our selection of fiber optic transceivers, cables (singlemode and multimode), and media converters will allow you to easily deploy switches, routers, access points, and controllers across your network.

If your network is in need of an upgrade, look no further than FluxLight. We have the products you need to set up and maintain nearly any type of fiber optic network. We offer low prices, free domestic shipping and a 30-day money back guarantee!

10g sfp

About FluxLight

FluxLight, Inc., founded in 2003, is a manufacturer and web-based direct sales company focused on optical interconnect products including: transceivers (i.e. SFP transceivers, optical transceivers, 10G SFP, etc.), media converters, jumper cables, fiber optic cable and accessories. FluxLight has grown fulfilling over 25,000 orders to thousands of satisfied customers. Since our inception, we have sold and supported our products to corporations (small business to Fortune 500), federal/state/local government agencies, educational institutions, and to dealers and distributors.

FluxLight is convinced that is own success is based on the success of its customers. That success is achieved by offering top quality products backed with great customer service. We know you have many choices of where to buy, so we do our best to provide the best optical interconnect products (transceivers, media converters, fiber optics, optical cable and accessories) at the best prices, and with the best support you will find anywhere.