- Cyber Security
Zero Trust Security: What It Means for SMEs
4 Jul, 2025
Shop›Switch Tranceivers (GBIC/SFP)›StarTech.com Cisco GLC-SX-MM Compatible SFP Transceiver Module - 1000BASE-SX~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
StarTech.com Cisco GLC-SX-MM Compatible SFP Transceiver Module - 1000BASE-SX~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
£24.20
£29.04 inc. VAT
Low Stock(1)MPN: SFPGLCSXMMST
🚚 Next-day delivery £4.95
Quantity:1
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Key Features
StarTech.com Cisco GLC-SX-MM Compatible SFP Module, 1000BASE-SX, 1GbE Multimode Fiber MMF Optic Transceiver, Gigabit Ethernet SFP, LC Connector, 550m, 850nm, Cisco IE3400, IE3300, IE3200 (SFPGLCSXMMST)
SFP (mini-GBIC) transceiver module
1GbE
1000Base-SX
LC multi-mode
up to 550 m
850 nm
for P/N: ET91000SFP2, ET91000SFP2C, IES101002SFP, MCM1110SFP, PEX1000SFP2
Product Overview
AI-generated summary
For £24.24 ex-VAT, this is exactly the kind of “keep the network running” SFP most SMEs should buy—*assuming* you already know you’re on the right fibre type. It’s designed to behave like Cisco’s GLC-SX series over multimode using LC connectors, so it’s a sensible cost-saving swap for people running Cisco IE3200/IE3300/IE3400 where the original transceiver pricing stings. If you’ve got short-ish multimode runs and you want predictable link behaviour without paying Cisco tax, it’s good value.
I’d be cautious only on the usual gotchas: distance/fibre mismatch and module compatibility. SX optics are fine for multimode, but if you’ve got the wrong fibre grade, long runs, or you’re trying to use it on the wrong port type/requirements, you’ll get intermittent links or “works until it doesn’t.” Also, if you need spares for mission-critical links, buy a couple at once and test them on the exact switch/port before relying on them in production.
**Buy this if:** you’re maintaining a Cisco IE stack with multimode LC cabling and want low-cost replacements. **Skip it if:** your plant has uncertain fibre runs, mixed media, or you want guaranteed “drop-in” behaviour without verifying compatibility first.
Specifications
Performance
SFP transceiver typeFiber optic
Maximum data transfer rate1250 Mbit/s
Interface typeSFP
Multi-mode fiber (MMF) supportedY
Fiber optic connectorLC
Features
Product colourSilver
Hot-swapY
Mean time between failures (MTBF)3381761 h
Brand compatibilityCisco
Compatible productsGLC-SX-MM
Power
Power consumption (typical)1 W
Certificates
Compliance certificatesRoHS
CertificationCE, FCC, UL, REACH
Operational conditions
Operating temperature (T-T)0 - 70 °C
Storage temperature (T-T)-40 - 85 °C
Operating relative humidity (H-H)30 - 70 %
Weight & dimensions
Width12 mm
Depth60 mm
Height10 mm
Weight16 g
Packaging content
Quantity per pack1 pc(s)
Packaging data
Package width95 mm
Package depth118 mm
Package height32 mm
Package weight95 g
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