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Small rectangular SFP transceiver module with matte black finish and gold edge connector, LC duplex port visible on front face

STARTECH

STARTECH MASFP1GBSXST SFP transceiver 1000BASE-SX 850nm LC 550m

SKU CH-RAYM-5A5SN MPN MASFP1GBSXST

Connects switches with 1.25 Gbps Gigabit Ethernet over 850 nm multimode fibre up to 550 m using LC duplex

  • Device TypeTransceiver
  • StandardsIEEE 802.3z 1000BASE-SX
  • Wavelength850nm
  • Fiber CableMulti Mode
  • ProtocolsTCP/IP
  • Ports1 - Fiber Optic LC Duplex Female

Type 1000Base-SX

  • Gigabit Ethernet performance with IEEE 802.3z 1000BASE-SX standard
  • Up to 550 m reach over multimode fibre at 850 nm
  • Hot-swappable LC duplex transceiver with Digital Diagnostic Monitoring
  • 100 % Cisco Meraki MA-SFP-1GB-SX compatible for MS225, MX400, MS250, MS350, MX84
  • Operates from 0 °C to 70 °C with 5–95 % humidity tolerance

Cisco Meraki compatible SFP transceiver

The STARTECH MASFP1GBSXST is a hot-swappable SFP module built for 1000BASE-SX Gigabit Ethernet links over multimode fibre. It targets network engineers who need a drop-in replacement for the Cisco Meraki MA-SFP-1GB-SX in switches such as the MS225, MX400, MS250, MS350 and MX84. The module also works with MSA-compliant switches from other vendors that accept uncoded transceivers.

LC duplex multimode fibre up to 550 metres

The transceiver uses an LC duplex female port and operates at 850 nm over OM1 or OM2 multimode fibre, reaching distances of 550 m or 1804 ft. It requires a free SFP cage on a switch or router that supports the IEEE 802.3z standard and a matching LC duplex patch cord. Digital Diagnostic Monitoring reports real-time status to SNMP management tools, freeing administrators from manual link checks.

Industrial temperature range for sustained operation

Rated for continuous use from 0 °C to 70 °C (32 °F to 158 °F) with a storage span of -40 °C to 85 °C (-40 °F to 185 °F) and 5–95 % relative humidity, the module maintains a steady 1.25 Gbps transfer rate under load. It is not suited for single-mode fibre runs or distances beyond 550 m, nor for environments that exceed the stated temperature limits.

Highlights

  • Gigabit Ethernet performance with IEEE 802.3z 1000BASE-SX standard
  • Up to 550 m reach over multimode fibre at 850 nm
  • Hot-swappable LC duplex transceiver with Digital Diagnostic Monitoring
  • 100 % Cisco Meraki MA-SFP-1GB-SX compatible for MS225, MX400, MS250, MS350, MX84
  • Operates from 0 °C to 70 °C with 5–95 % humidity tolerance

Specifications

BrandStarTech.com
ModelMASFP1GBSXST
Device TypeTransceiver
StandardsIEEE 802.3z 1000BASE-SX
Wavelength850nm
Fiber CableMulti Mode
ProtocolsTCP/IP
Ports1 - Fiber Optic LC Duplex Female
Max Distance550 m (1804 ft)
Transfer Rate1.25 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
FeatureDelivers reliable Gigabit Ethernet connections for 1000Base-SX compliant networks
100% Cisco Meraki compatible SFP, equivalent to Cisco Meraki MA-SFP-1GB-SX
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)
850 nm optical wavelength
Supports multimode (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 size120 × 90 × 30 mm

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Questions about this item

How far will the 850 nm 1000BASE-SX link reach on multimode fibre?

The transceiver supports up to 550 m (1804 ft) on multimode fibre at 850 nm.

What is the operating temperature range and does the module include digital diagnostic monitoring?

It operates from 0 °C to 70 °C and includes Digital Diagnostic Monitoring (DDM) for SNMP status reporting.

Which switch port type must be free to install this SFP module?

An open SFP slot that accepts an LC duplex connector is required.

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