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StarTech.com SFPGLCSXMMST 1.25Gbps SFP transceiver showing LC front port and label
StarTech.com SFPGLCSXMMST 1.25Gbps SFP transceiver showing LC front port and label
Rear view of SFPGLCSXMMST 1.25Gbps SFP module with gold contacts and latch
Close-up of LC duplex ports on StarTech.com SFPGLCSXMMST 1.25Gbps SFP transceiver
StarTech.com SFPGLCSXMMST 1.25Gbps SFP LC 550m Transceiver
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StarTech.com SFPGLCSXMMST 1.25Gbps SFP LC 550m Transceiver

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Dispatch Time: Next Working Day Dispatch timelines are estimates and may vary due to unforeseen delays of 1-2 working days for small orders. Larger quantities may require additional processing time.

Product Code: OPTT-269

MPN #: SFPGLCSXMMST

Product Condition: New

Network slowdowns can cripple your office when a single link can’t keep up with demand. The StarTech.com SFPGLCSXMMST 1.25Gbps SFP LC 550m Transceiver is a hot-swappable fiber module that gives you reliable 1 Gbps Ethernet over multimode cable, extending connections up to 550 m. It’s designed for Cisco-compatible switches and routers, so you can upgrade without disrupting service and enjoy a lifetime warranty for peace of mind.

Usages of a 1.25Gbps SFP

Ideal for campus networks, data-center uplinks, and office floor extensions where you need gigabit speed over multimode fiber. It fits neatly into standard SFP slots, letting you replace copper links or older optics with a simple plug-in, keeping daily operations smooth and fast.

Benefits of StarTech.com SFP
  • Lifetime warranty: you are covered for the life of the product, removing future cost worries.
  • Hot-swap ready: replace or upgrade modules without powering down the network.
  • Low power draw: consumes less than 1 W, helping to keep energy bills down.
  • High reliability: MTBF of 3,381,761 hours ensures long-term stability.
  • Cisco compatibility: works seamlessly with Cisco switches and routers, reducing configuration hassles.

StarTech.com SFP Advantages

Choosing this module means you get a purpose-built solution that matches Cisco’s specifications, so you avoid the guesswork of third-party compatibility. The 850 nm wavelength and LC connector are standard for 1000BASE-SX links, giving you consistent performance across existing infrastructure. With a maximum transfer distance of 550 m, you can stretch your network farther without adding repeaters, saving both time and money.

Key Features of a 1.25Gbps SFP
  • Data rate: 1.25 Gbps. Provides full gigabit Ethernet throughput for demanding applications.
  • Wavelength: 850 nm. Optimised for multimode fiber, ensuring clear signal over the specified distance.
  • Connector type: LC. Fits standard LC ports commonly found in network equipment.
  • Maximum distance: 550 m (1804 ft). Extends your network reach without extra hardware.
  • Power consumption: less than 1 W. Keeps energy use minimal while delivering high performance.
  • MTBF: 3,381,761 hours. Offers exceptional reliability for continuous operation.
  • Form factor: Plug-in module. Easy to install in any SFP slot with no tools required.
  • Compatibility: Cisco GLC-SX-MM. Guarantees seamless integration with Cisco devices.
  • Warranty: Lifetime. Protects your investment with unlimited support.
  • Operating temperature: 32 °F - 158 °F. Works reliably in typical office and data-center environments.

Specifications
Miscellaneous
Miscellaneous / Compliant StandardsUL, FCC, RoHS, MSA
Networking
Networking / Form FactorPlug-in module
Networking / Connectivity TechnologyWired
Networking / FeaturesFull duplex capability, half duplex mode
Networking / Data Transfer Rate1.25Gbps
Networking / Optical Wave Length850 nm
Networking / Cabling TypeEthernet 1000Base-SX
Networking / Data Link ProtocolGigabit Ethernet
Networking / TypeSFP (mini-GBIC) transceiver module
Networking / Max Transfer Distance1800 ft
Header
Header / Product LineStartech
Header / Packaged Quantity1
Manufacturer Warranty
Manufacturer Warranty / Service & SupportLimited warranty - lifetime
Environmental Parameters
Environmental Parameters / Min Operating Temperature32 °F
Environmental Parameters / Max Operating Temperature158 °F
Service & Support
Service & Support / TypeLimited lifetime warranty
General
General / Device TypeSFP (mini-GBIC) transceiver module
General / Form FactorPlug-in module
Expansion / Connectivity
Expansion / Connectivity / Interfaces1 x Ethernet 1000Base-SX - LC multi-mode x 2
Summary Details
SFP transceiver typeFiber optic
Maximum data transfer rate1250 Mbit/s
Interface typeSFP
Product colourSilver
Mean time between failures (MTBF)3381761 h
Brand compatibilityCisco
Power consumption (typical)1 W
Compliance certificatesRoHS
CertificationCE
Width12 mm
Depth60 mm
Height10 mm
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