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Small rectangular Cisco SFP transceiver module with LC connector and silver metal finish

Cisco Systems, Inc.

Cisco Systems, Inc. MGBSX1 SFP transceiver 1000Base-SX 850 nm 550 m

SKU CH-HE5B-Z3N1M MPN MGBSX1

Gigabit SFP transceiver for 850 nm multi-mode fibre up to 550 m with LC connector

  • Form factorSFP
  • Port countTotal Number of Ports: 1 Connector Type: LC Interfaces/Ports
  • Brand compatibilitySR2024–24-Port 10/100/1000 Gigabit Switch SR224G - 24-Port 1
  • Product typeTransceiver
  • Network cablingMedia Type Supported: Optical Fiber Fiber Mode Supported: Mu
  • Optical wavelengthTransmitter Spec: Power: -9.5 to -4 dBm Reciever Spec: Sensi

Type 1000Base-SX

  • Gigabit Ethernet speed over multi-mode fibre
  • 550 metre reach on 850 nm wavelength
  • LC duplex connector for simple patching
  • Hot-swappable SFP form factor fits Cisco switches
  • FCC, EN55022 and FDA laser safety compliant

Gigabit SFP for Multi-mode Fibre

This Cisco MGBSX1 transceiver provides a single 1000Base-SX port in the SFP form factor. It operates at an 850 nm wavelength over multi-mode optical fibre with LC connectors. The module delivers a 1 Gbps data rate for short-range network links.

Suited for Short-range Uplinks

Network administrators extending Gigabit links within a building or campus over multi-mode fibre will find this module appropriate. It is not intended for single-mode fibre runs or for distances beyond the specified 550 m reach. Buyers needing longer spans or different wavelengths should consider other transceiver types.

550 m Reach on Multi-mode Fibre

The transceiver supports a maximum distance of 550 m on 50/125 µm or 62.5/125 µm multi-mode cable. Transmitter output ranges from -9.5 to -4 dBm and receiver sensitivity is -20 to -17 dBm. This distance figure determines whether the module fits the planned link length.

How it compares

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

Price $96.99
Cheaper than about 58% of the 1,471 comparable items (median $138.99).

Specifications

Product
Brand nameCisco Systems, Inc
Part numberMGBSX1
Product typeTransceiver
Performance
Transfer speed1 Gbit/s
Connectivity
Network cablingMedia Type Supported:
Optical Fiber
Fiber Mode Supported:
Multi-mode
Maximum Distance Supported:
0.55 km
Optical wavelengthTransmitter Spec: Power: -9.5 to -4 dBm
Reciever Spec: Sensitivity: -20 to -17dBm
Input Power: -20 to -17 dBm
Stress Sensitivity: 50/125 um: -13.5dBm, 62.5/125 um: -12.5dBm
Wavelength: 850 nm (850 nm TYP., 830-860 nm) MMF
Modular Bandwidth for MMF:
62.5/125um MMF at 160 MHz/km, up to 220m
62.5/125um MMF at 200 MHz/km, up to 275m
50/125um MMF at 400 MHz/km, up to 500m
50/125um MMF at 500 MHz/km, up to 550m
Fiber modeMulti-mode Optical Fiber
Supported protocolsTCP/IP
Maximum range500m
Ports & slots
Port countTotal Number of Ports:
1
Connector Type:
LC
Interfaces/Ports Details:
1 x LC 1000Base-SX
Size & build
Form factorSFP
Shipping weight0.05 kg
Package size127 × 102 × 51 mm
Compatibility
Brand compatibilitySR2024–24-Port 10/100/1000 Gigabit Switch
SR224G - 24-Port 10/100 + 1-Port Gigabit Switch + 1 MiniGBIC
SRW2016–16-Port 10/100/1000 Gigabit Switch with WebView
SRW2024–24-Port 10/100/1000 Gigabit Switch with WebView
SRW224–24-port 10/100 + 2-Port Gigabit Switch with WebView
In the box
In the boxCisco SFP transceiver
Quick installation guide

Other versions of this model

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Questions about this item

Should I pick the 550 m or 500 m distance rating for my link?

Both figures refer to the same 850 nm multi-mode reach; 550 m is the headline spec and 500 m appears in the detailed table, so plan for the shorter 500 m to be safe.

What does the 1 Gbps transfer rate deliver in a live switch?

It provides a full-duplex gigabit Ethernet link over multi-mode fibre with an LC connector, limited by the 500 m reach and the -9.5 to -4 dBm launch power window.

How does the SFP 1000Base-SX interface limit my cabling choices?

The LC duplex port only works with 850 nm multi-mode fibre (50/125 µm or 62.5/125 µm) and caps the link at 500 m; single-mode cable will not operate.

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