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Small rectangular SFP transceiver module with black housing and LC duplex port

STARTECH

STARTECH EXSFP1GESXST SFP transceiver 1000BASE-SX 850nm 550m

SKU CH-PGD6-053E8 MPN EXSFP1GESXST

A hot-swappable SFP transceiver delivering 1.25 Gbps over 850 nm multimode fibre up to 550 m for 1000BASE-SX networks

  • Device TypeTransceiver
  • StandardsIEEE 802.3z 1000BASE-SX
  • Wavelength850nm
  • Fiber CableMulti Mode
  • ProtocolsTCP/IP
  • Ports1 - Fiber Optic LC Duplex Female
  • Delivers reliable Gigabit Ethernet for 1000BASE-SX networks
  • 100% compatible with Juniper EX-SFP-1GE-SX guaranteed
  • Maximum transfer distance of 550 m (1804 ft)
  • Low power consumption under 1 W
  • Hot-swappable SFP module with DDM support

What this SFP module does

The StarTech EXSFP1GESXST is a hot-swappable SFP transceiver built for 1000BASE-SX Gigabit Ethernet links over multimode fibre. It carries a 850nm wavelength and connects through an LC duplex port, delivering 1.25 Gbps transfer rate up to 550 m. The module is guaranteed compatible with Juniper EX-SFP-1GE-SX equipment and meets MSA standards for interoperability.

Sustained load behaviour

DDM support lets the host monitor optical power, temperature and voltage in real time so link health stays visible during continuous traffic. Power draw remains below 1 W, keeping thermal contribution minimal inside a fully populated switch. The transceiver operates reliably from 0 to 70 degree C, matching the 32 to 158 degree F range specified for normal service.

Thermals noise and power

With no moving parts the unit adds zero acoustic noise to the rack. Typical consumption stays under 1 W, well within the headroom of standard SFP cages. Storage tolerance stretches from -40 to 85 degree C (-40 to 185 degree F) and 5 to 95 percent relative humidity, so spares survive harsh spares cabinets without degradation.

Highlights

  • Delivers reliable Gigabit Ethernet for 1000BASE-SX networks
  • 100% compatible with Juniper EX-SFP-1GE-SX guaranteed
  • Maximum transfer distance of 550 m (1804 ft)
  • Low power consumption under 1 W
  • Hot-swappable SFP module with DDM support

Specifications

BrandStarTech.com
ModelEXSFP1GESXST
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% Juniper Networks compatible SFP, equivalent to Juniper EX-SFP-1GE-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

Questions about this item

How much heat will the EXSFP1GESXST add when it runs continuously at 70 °C ambient?

The module draws under 1 watt, so its heat contribution is minimal even at the top of the 0–70 °C operating range.

What must my switch provide for this transceiver to operate?

An SFP slot that accepts LC duplex multimode fibre and supports the IEEE 802.3z 1000BASE-SX standard.

Will the EXSFP1GESXST link with legacy 1000BASE-SX gear over OM1 fibre?

Yes, it complies with the same 850 nm multimode standard and reaches 550 m on OM2, while OM1 supports shorter runs.

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