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Small rectangular SFP transceiver module with LC duplex port and metallic finish

STARTECH

STARTECH GLCSXMMDST SFP transceiver 1000BASE-SX 850nm 550m

SKU CH-EY1Y-M0Y53

A 1000BASE-SX SFP transceiver delivering 1.25 Gbps over 850 nm multimode fibre up to 550 m with LC duplex connector

  • Port count1 - Fiber Optic LC Duplex Female
  • Product typeTransceiver
  • Supported standardsIEEE 802.3z 1000BASE-SX
  • Optical wavelength850 nm
  • Fiber modeMulti Mode
  • Supported protocolsTCP/IP
  • 100% Cisco GLC-SX-MMD compatibility guaranteed
  • Gigabit Ethernet up to 550 m over multimode fibre
  • Hot-swappable SFP module compliant with MSA standards
  • Low power consumption under 1 W
  • Operating temperature range 0 °C to 70 °C

Cisco GLC-SX-MMD compatible transceiver

The StarTech.com GLCSXMMDST is a hot-swappable SFP module built for 1000BASE-SX networks. It delivers Gigabit Ethernet over multimode fibre with an LC duplex connector. Network engineers upgrading or repairing Cisco equipment can install it without reconfiguring the switch.

Operating range 0 °C to 70 °C and sub-1 W draw

The transceiver runs from 32 °F to 158 °F and survives storage from -40 °C to 85 °C in 5 % to 95 % humidity. Power consumption stays below one watt, so dense chassis deployments add minimal thermal load. No fan or heatsink is required on the module itself.

DDM monitoring and lifetime support included

Digital Diagnostics Monitoring lets administrators track temperature, voltage and optical levels in real time. The package contains only the transceiver; cables and patch panels are sourced separately. Lifetime warranty and free technical support cover the module for its entire service life.

How it compares

Measured against everything we stock in SFP & SFP+ Transceiver Modules, at today’s prices. Recalculated every night.

Price $57.99
Cheaper than about 69% of the 1,471 comparable items (median $138.99).

Specifications

Product
Brand nameStarTech.com
Model nameGLCSXMMDST
Product typeTransceiver
Performance
Transfer speed1.25 Gbit/s
Connectivity
Supported standardsIEEE 802.3z 1000BASE-SX
Optical wavelength850 nm
Fiber modeMulti Mode
Supported protocolsTCP/IP
Maximum range550 m (1804 ft)
Ports & slots
Port count1 - Fiber Optic LC Duplex Female
Size & build
Shipping weight0.05 kg
Package size120 × 90 × 30 mm
In the box
In the box1 - SFP transceiver
Environment & compliance
Temperature rangeOperating Temperature: 0 degree C to 70 degree C (32 degree F to 158 degree F)
Storage Temperature: -40 degree C to 85 degree C (-40 degree F to 185 degree F)
Humidity range5 to 95% RH

Questions about this item

How do I install the GLCSXMMDST into a Cisco switch and what step is often missed?

Insert the hot-swappable SFP into an empty SFP slot until it clicks, then connect an LC duplex multimode patch cable; the step often missed is removing the dust caps from both the module and the cable ends before linking.

What maintenance or replacement will the GLCSXMMDST need over its lifetime?

The module itself has no user-serviceable parts; only the external LC duplex multimode patch cables may need replacement if connectors are damaged or contaminated.

What is the first limit reached when running the GLCSXMMDST continuously at full 1.25 Gbps load?

The 550 m maximum reach on multimode fibre is the primary distance limit; the module operates within 0 °C to 70 °C, so sustained use within that temperature range will not trigger thermal throttling.

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