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Cisco GLC-SX-MM compatible 1000BASE-SX multimode SFP
A Cisco GLC-SX-MM compatible SFP optical module for 1GbE multimode fibre links up to 550m, using duplex LC at 850nm.

Key capabilities
Cisco GLC-SX-MM compatible
Designed, programmed and tested for compatible Cisco equipment.
550m multimode reach
Supports 1000BASE-SX links up to 550m / 1804ft.
850nm duplex LC
Uses multimode fibre through an LC duplex interface.
Hot-swappable SFP
The exact product description identifies the module as hot-swappable.
What to know before buying
This model does not support DDM. Confirm the host accepts Cisco GLC-SX-MM compatible SFP modules and the multimode fibre installation is suitable for 1000BASE-SX.
Australian version and manufacturer warranty
This item is the Australian version supplied by DeviceDeal and is covered by the official StarTech.com Lifetime manufacturer warranty in Australia.
Please retain your DeviceDeal tax invoice as proof of purchase. Warranty coverage and claims are subject to StarTech.com warranty terms, eligibility requirements and product assessment.
Frequently asked questions
What is the StarTech SFPGLCSXMMST compatible with?
What network speed does it support?
What fibre type does it use?
What connector and wavelength are used?
What is the maximum distance?
Does it support DDM?
What power consumption is listed?
What warranty applies in Australia?
(SFPGLCSXMMST)
Features and highlights
Cisco GLC-SX-MM compatible
Designed, programmed and tested for compatible Cisco equipment.
550m multimode reach
Supports 1000BASE-SX links up to 550m / 1804ft.
850nm duplex LC
Uses multimode fibre through an LC duplex interface.
Hot-swappable SFP
The exact product description identifies the module as hot-swappable.
- 1GbE / 1.25Gbps
- Multimode fibre
- LC / 850nm / 550m
- Lifetime warranty
Specifications
Verified specifications for StarTech SFPGLCSXMMST.

Warranty Information
| Warranty | Lifetime |
|---|
Hardware
| Compatible Brand | Cisco |
|---|---|
| Industry Standards | IEEE 802.3z 1000BASE-SX |
| WDM | No |
Performance
| Compatible Networks | 1000 Mbps (1 Gbps) |
|---|---|
| DDM | No |
| Fiber Operating Mode | Half/Full-Duplex |
| Max Transfer Distance | 550 m (1804 ft) |
| Maximum Data Transfer Rate | 1.25 Gbps |
| MTBF | 3,381,761 hours |
| Type | Multi Mode |
| Wavelength | 850nm |
Connector(s)
| Local Unit Connectors | 1 - Fiber Optic LC Duplex Female |
|---|
Special Notes / Requirements
| Note | For use in Gigabit fiber networking equipment and media converters |
|---|---|
| System and Cable Requirements | MSA or Cisco compliant SFP port |
Power
| Power Consumption (In Watts) | < 1 W |
|---|
Environmental
| Humidity | 30~70% RH |
|---|---|
| Operating Temperature | 0°C to 70°C (32°F to 158°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 85°F) |
Physical Characteristics
| Product Height | 0.4 in [1 cm] |
|---|---|
| Product Length | 2.4 in [60 mm] |
| Product Width | 0.5 in [12 mm] |
| Weight of Product | 0.6 oz [16 g] |
Packaging Information
| Package Height | 1.3 in [32 mm] |
|---|---|
| Package Length | 4.6 in [11.8 cm] |
| Package Width | 3.7 in [95 mm] |
| Shipping (Package) Weight | 3.4 oz [95 g] |
What's in the Box
| Included in Package | 1 - 1.25 Gbps Multimode LC SFP |
|---|
| SKU | SFPGLCSXMMST |
| Barcode # | 65030849692 |
| Brand | STARTECH |
| Shipping Weight | 0.0500kg |
| Shipping Width | 0.100m |
| Shipping Height | 0.050m |
| Shipping Length | 0.120m |
| Shipping Cubic | 0.000600000m3 |
StarTech.com warranty in Australia
This item is the Australian version supplied by DeviceDeal and is covered by the official StarTech.com Lifetime manufacturer warranty in Australia.
Please retain your DeviceDeal tax invoice as proof of purchase.
Warranty coverage and claims are subject to StarTech.com warranty terms, eligibility requirements and product assessment. This wording does not promise automatic replacement or guaranteed claim approval.
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