Cisco GLC-SX-MM Compatible SFP Module - 1000BASE-SX - 1GbE Multimode Fiber MMF Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - Cisco IE3400, IE3300, IE3200

1000 Mbps (1 Gbps) | Multi Mode Fiber | LC | 550 m (1804 ft) | Lifetime Warranty


3 stars (2 reviews) |
  • 100% CISCO GLC-SX-MM COMPATIBLE: Works with Cisco switches like IE3400, IE3300, IE3200, ME1200, ME2400 and others
  • TECHNICAL SPECS: 1000BASE-SX | 1 Gbps | Multi Mode (MMF) | LC Connector | 850nm | Distances up to 550m (1804ft)
  • TESTED FOR OEM HOST COMPATIBILITY: Hot-swappable in Cisco routers and switches
Your price
$124.99 NZD excl. GST
$143.74 NZD incl. GST

The SFPGLCSXMMST is a Cisco GLC-SX-MM compatible fiber transceiver module that has been designed, programmed and tested to work with Cisco® brand switches and routers. It delivers dependable 1GbE (1000 Mbps) connectivity over fiber cable, for 1000BASE-SX compliant networks, with a maximum distance of up to 550 m (1804 ft).

Technical Specifications:

  • Wavelength: 850 nm
  • Maximum Data Transfer Rate: 1.25 Gbps
  • Type: Multi Mode Fiber
  • Connection Type: LC Connector
  • Maximum Transfer Distance: 550 m (1804 ft)
  • MTBF: 3,381,761 hours
  • Power Consumption: Less than 1 Watt
  • Digital Diagnostics Monitoring (DDM): No

This SFP fiber module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions. SFPs

All SFP & SFP+ transceiver modules are backed by a lifetime warranty and free lifetime multilingual technical support. offers a wide variety of SFP modules and direct-attach SFP cables, providing the convenience and reliability you need to ensure dependable network performance.


  • Replacing defective or damaged SFP modules in Cisco switches and routers
  • Expand your network to remote segments

Partner Numbers

  • Ingram Micro New Zealand 2356165
  • UPC 065030849692


Warranty Information Warranty Lifetime
Material Steel
System and Cable Requirements MSA or Cisco compliant SFP port
Connector(s) 1 - Local Unit Connectors Fiber Optic LC Duplex
Environmental Operating Temperature 0°C to 70°C (32°F to 158°F)
Storage Temperature -40°C to 85°C (-40°F to 85°F)
Humidity 30~70% RH
Hardware Compatible Brand Cisco
Industry Standards IEEE 802.3z 1000BASE-SX
Packaging Information Package Height 1.3 in [32.0 mm]
Package Length 4.6 in [11.8 cm]
Package Width 3.7 in [95.0 mm]
Shipping (Package) Weight 3.4 oz [95.0 g]
Performance Maximum Data Transfer Rate 1.25 Gbps
Max Transfer Distance 550 m (1804 ft)
Type Multi Mode
Wavelength 850nm
Fiber Operating Mode Half/Full-Duplex
Compatible Networks 1000 Mbps (1 Gbps)
MTBF 3,381,761 hours
Power Consumption (In Watts) < 1 W
Physical Characteristics Product Length 2.4 in [60.0 mm]
Product Width 0.5 in [12.0 mm]
Product Height 0.4 in [1.0 cm]
Weight of Product 0.6 oz [16.0 g]
Special Notes / Requirements Note For use in Gigabit fiber networking equipment and media converters
What's in the Box 1 - Included in Package 1.25 Gbps Multimode LC SFP



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Frequently Asked Questions


Ensure the Network Device is running a compatible Firmware Version on a compatible Operating System. Please consult the manufacturer of the Network Device for more information regarding the minimum required or recommended system software.

Before You Buy

SFP fiber transceivers (mini-GBIC) are specific to applications and therefore, you need to select the correct fiber transceiver for your application. offers a few types of fiber transceivers: Cisco®, Cisco Meraki®, HP®, and Juniper® compatible, as well as standard gigabit SFP converters. Although the transceivers may be referred to as GBIC or mini-GBIC, the correct terminology for the device is small form-factor pluggable transceiver or SFP . does not carry GBIC converters.

If your device is not a Cisco device, it can still use Cisco compatible SFPs. Cisco SFPs are specifically coded to be compatible with Cisco devices. A standard SFP will not work in a Cisco device. offers two different output connector types for SFPs: RJ-45 and fiber.

No special requirements are necessary to use RJ-45 SFPs. However, if you use fiber transceivers, the following items need to be the same as the interconnecting equipment:

  • The connector type, such as LC, SC, or ST.

  • The mode (single mode or multi mode).

  • The wavelength, such as 850 nm, 1310 nm, or 1550 nm.

  • The DDM support.

  • The speed, such as 10Gbps.

Note: The properties listed above cannot be converted or changed by a cable, excluding the connector type.  

UPC and APC are fiber connector types. UPC (Ultra Physical Contact) connectors have a fiber connector end face that has been polished to a dome-shape. APC (Angled Physical Contact) connectors have a fiber connector end face that has been polished at an eight degree angle. When building fiber solutions, be sure to avoid mixing UPC and APC connectors. UPC and APC cannot mate with one another because causes the fiber cores don’t touch. This can cause a degraded connection or none at all. fiber products use UPC connectors.

Compliance and safety

Compliance letters

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

Customer Reviews

(2 reviews)
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1 - 2 of 2 Reviews
(1 Stars)

Does not work with Cisco 2911

By: Josh - 11/24/2015
This product was purchased to work with a Cisco 2911 Router and does not work in that router. It shows up as: NAME: "1000BASE-SX SFP", DESCR: "1000BASE-SX SFP" PID: unknown , VID: 1.0, SN: H309712 I contacted and they said that it may not be supported by that model. Cisco end of lifed the GLC-SX-MM= adapter and replaced it with the GLC-SX-MMD adapter. Be sure to get something compatible with that to be supported by the Cisco 2911 Router. This product claims to be compatible with the GLC-SX-MM= adapter, but that adapter is supported by the 2911 Router. This one was not. This was my first experience buying a 3rd party GBIC. I have bought other Startech products and have been happy with them. I will continue to buy Startech products.
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(5 Stars)

1.25Gbps LC Fiber SFP Transceiver

By: Starr - 09/20/2018
Simple and it works. Just plug it into your switch. Plug your LC Multi Mode Fiber cable into the Transceiver and it works.
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