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Small rectangular transceiver module with duplex LC connector, matte metal finish

Cisco Systems, Inc.

Cisco Systems, Inc. SFP-25G-SR-S= 25GBase-SR SFP28 server accessory

SKU CH-BRNQ-Q2K4S MPN SFP-25G-SR-S=

A 25 Gbps SFP28 transceiver with an LC duplex interface for multimode fibre links

  • TypeSFP28
  • Features1 x LC/PC Duplex 25GBase-SR Network
  • 25 Gbps throughput via SFP28 interface
  • range multimode connectivity with LC duplex
  • Cisco-engineered reliability for server environments
  • Hot-pluggable SFP28 form factor simplifies deployment
  • Compliant with 25GBase-SR industry standard

25GBase-SR SFP28 Module

This Cisco SFP28 transceiver delivers 25 Gbps connectivity over multimode fibre using an LC/PC duplex interface. It is designed for servers and switches that require short-range 25G uplinks in data-centre environments.

Thermals, noise and power

The module operates without an integrated fan, relying on the host system airflow for cooling. Power consumption follows the SFP28 standard for SR optics, producing minimal acoustic impact in normal rack operation.

Multimode fibre reach

The 25GBase-SR specification defines the supported distance over OM3 or OM4 multimode fibre. Verify that your link length and fibre type match this reach before purchase.

Highlights

  • 25 Gbps throughput via SFP28 interface
  • range multimode connectivity with LC duplex
  • Cisco-engineered reliability for server environments
  • Hot-pluggable SFP28 form factor simplifies deployment
  • Compliant with 25GBase-SR industry standard

Specifications

BrandCisco
TypeSFP28
Features1 x LC/PC Duplex 25GBase-SR Network
Shipping weight0.36 kg
Package size127 × 102 × 51 mm

Questions about this item

How do I install the SFP28 module and which step is often missed?

Insert the module into a compatible SFP28 port until it clicks, then connect the LC/PC duplex patch cord; the step often missed is removing the dust caps from both the module and the fibre ends before linking them.

What maintenance or replacement will the module need later?

The module itself has no moving parts or user-serviceable items; only the LC/PC duplex connectors may need cleaning with a fibre scope and lint-free wipes if signal loss appears.

What limit appears first under sustained 25G operation?

The 25GBase-SR link is limited by the multimode fibre reach, so the first constraint is the maximum supported distance on the installed OM3 or OM4 cable plant.

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