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

AddOn

AddOn GLC-SX-MMD-AO 1000Base-SX SFP Transceiver

SKU CH-N0VV-19ZTM

1000Base-SX SFP transceiver for multimode fibre at 850 nm, reaching 550 m with LC connectors and DOM, TAA compliant

  • Form factorSFP
  • Port countLC
  • Brand compatibilityCisco®
  • Product typeTransceiver
  • Optical wavelength850 nm
  • Fiber modeMMF

Type 1000Base-SX

  • 1 Gbps data transfer over multimode fibre up to 550 m
  • LC duplex connector enables hot-swappable SFP installation without network downtime
  • 850 nm wavelength optimised for short-reach multimode links
  • TAA compliant for government and regulated procurement
  • Factory tested for full Cisco GLC-SX-MMD compatibility

Cisco GLC-SX-MMD Compatible SFP

This AddOn transceiver matches the Cisco GLC-SX-MMD part number and delivers 1000Base-SX performance over multimode fiber. It operates at 850nm wavelength with LC duplex connectors and supports link distances up to 550 metres. The module is TAA compliant and built to MSA standards for multi-vendor interoperability.

Switch Port And Fiber Checks

Verify that the target switch port accepts SFP modules and runs at 1 Gbps speed with 1000Base-SX optics. Confirm the installed cabling is multimode fiber with LC duplex terminations and that the planned link length stays within the 550 metre reach. The operating temperature range spans 0 to 70 Celsius, so ensure the chassis airflow meets that envelope.

Hot-Swap And DOM Benefits

The hot-swappable SFP form factor allows insertion or removal without powering down the switch, reducing maintenance downtime. Digital Optical Monitoring provides real-time visibility into received and transmitted optical power, temperature and voltage. Factory-loaded OEM configuration data enables the module to initialize identically to the original Cisco transceiver in mixed-vendor deployments.

How it compares

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

Price $30.99
Cheaper than about 87% of the 1,471 comparable items (median $138.99).

Specifications

Product
Brand nameAddOn
Part numberGLC-SX-MMD-AO
Product typeTransceiver
Performance
Transfer speed1 Gbit/s
Connectivity
Optical wavelength850 nm
Fiber modeMMF
Supported protocolsTCP/IP
Maximum range550M
Ports & slots
Port countLC
Size & build
Form factorSFP
Shipping weight0.16 kg
Package size121 × 70 × 30 mm
Compatibility
Brand compatibilityCisco®

Other versions of this model

1 more in the same range

Questions about this item

Does the AddOn GLC-SX-MMD-AO transceiver ship with any cables or patch cords included?

The transceiver is supplied as a standalone SFP module; multi-mode patch cables with LC connectors must be purchased separately to complete the link.

Should I choose this 550 m SX module or a longer-reach alternative for my network?

Select this 850 nm SX model when the link distance is 550 m or less over OM2 multi-mode fibre; for longer spans a LX or ZX module with a different wavelength is required.

What does the 1 Gbps transfer rate mean once the module is installed in a switch?

The port will negotiate a 1000 Mbps full-duplex Ethernet connection over multi-mode fibre up to 550 m, with DOM monitoring available for link health.

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