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Small rectangular SFP transceiver module with metal casing and LC duplex port visible

STARTECH

STARTECH GLCSXMMDSTT SFP transceiver 1000BASE-SX 850nm 500m

SKU CH-BPDQ-393T6

A Cisco-compatible SFP transceiver delivering 1 Gbps over multimode fibre at 850 nm up to 500 m with LC connectors and DDM

  • Device TypeTransceiver
  • Form FactorSFP
  • StandardsIEEE 802.3z 1000BASE-SX
  • Wavelength850nm
  • Fiber CableMulti-mode Optical Fiber
  • PortsLC
  • 1 Gbps transfer rate over 500 m multimode fibre
  • 850 nm wavelength suits 1000BASE-SX networks
  • LC duplex connector enables hot-swap installation
  • Digital diagnostic monitoring reports status via SNMP
  • TAA compliant for government procurement

Cisco GLC-SX-MMD Compatible SFP Module

This StarTech.com SFP transceiver delivers 1 Gbps Gigabit Ethernet over multi-mode fibre using an 850 nm wavelength. It follows the IEEE 802.3z 1000BASE-SX standard and fits any MSA-compliant SFP cage with an LC duplex connector. The module is TAA compliant and designed as a direct replacement for the Cisco GLC-SX-MMD part. It suits network administrators upgrading or expanding fibre links in enterprise or campus environments.

Verify Switch Compatibility and Fibre Type

Confirm that your switch or router accepts uncoded, MSA-compliant SFP modules before ordering. The transceiver requires multi-mode fibre (MMF) with LC duplex connectors and supports link distances up to 500 m (1640 ft) or 550 m (1804 ft) depending on fibre grade. Ensure the host equipment operates within the 0 °C to 70 °C (32 °F to 158 °F) range and 5–95 % RH humidity limits. Digital Diagnostic Monitoring (DDM) support allows status reporting via SNMP tools.

Hot-Swappable Fibre Uplink for Mixed Vendor Networks

The hot-swappable SFP installs without powering down the host switch, freeing a copper port for a fibre uplink. It works with Cisco platforms such as Firepower, ASR920, IE2000, IE4000 and ASR1000 as well as MSA-compliant switches from Ubiquiti, D-Link, Netgear, Supermicro and TP-Link. Using this module preserves OEM warranty coverage on the host equipment while adding a multi-mode fibre connection.

Highlights

  • 1 Gbps transfer rate over 500 m multimode fibre
  • 850 nm wavelength suits 1000BASE-SX networks
  • LC duplex connector enables hot-swap installation
  • Digital diagnostic monitoring reports status via SNMP
  • TAA compliant for government procurement

Specifications

BrandStarTech.com
ModelGLCSXMMDSTT
Device TypeTransceiver
Form FactorSFP
StandardsIEEE 802.3z 1000BASE-SX
Wavelength850nm
Fiber CableMulti-mode Optical Fiber
PortsLC
Max Distance500m (1640 ft)
Transfer Rate1 Gbps
TemperatureOperating 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)
Humidity5~95% RH
FeatureTAA compliant
Delivers reliable Gigabit Ethernet connections for 1000Base-SX compliant networks
Cisco compatible SFP, equivalent to GLC-SX-MMD
Backed by lifetime warranty and free lifetime technical support
Meets or exceeds OEM specifications and MSA (Multi-Source Agreement) industry standards
Supports Digital Diagnostics Monitoring (DDM / DOM)
850 nm optical wavelength
Supports multimode fiber (maximum distance 550 m / 1804 ft.)
LC fiber connector
Maximum data rates up to 1.25Gbps
Hot-pluggable
Package Contents1 - SFP transceiver
Shipping weight0.05 kg
Package size117 × 84 × 33 mm

Questions about this item

Does the box include any cables or patch cords, or do I need to buy multimode LC patch cables separately?

The package contains one SFP transceiver only; multimode LC patch cables must be purchased separately.

The specs list both 500 m and 550 m — which distance should I plan for when choosing between OM3 and OM4 fibre?

The module is rated for 500 m on standard multimode fibre; the 550 m figure applies to higher-grade OM3 or OM4 cable.

What does the 850 nm wavelength mean for link budget and eye safety when the transceiver is live in a switch?

850 nm is a short-wave multimode wavelength; the module meets Class 1 laser safety limits and provides a typical link budget of around 7.5 dB for 500 m runs.

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