25G SFP28 LR 1310nm 10km Optical Transceiver - Reliable 25G LR

In this review the focus is on a single-purpose 25G optical transceiver intended for networking professionals and data center technicians who need a cost-effective way to add 25GBASE-LR links. The reviewer found the module delivers the essential long-reach performance expected of a LR SFP28: operation at 1310nm with support for links up to 10km plus on-board diagnostics. It is a practical option when compatibility with Dell SFP28-25G-LR style ports and support for RS-FEC and FC-FEC matter, and the review highlights the product's straightforward value for targeted upgrade or replacement work.

Key Features

• 25GBASE-LR compatibility: Provides a direct replacement option for systems requiring a 25G LR SFP28 transceiver for singlemode fiber links up to 10km.
• 1310nm wavelength: Uses the standard 1310nm wavelength for reliable long-reach transmission over singlemode fiber with duplex LC connectors.
• FEC support: Supports RS-FEC and FC-FEC to improve link stability and error performance on congested or marginal links.
• Diagnostic monitoring: Includes DOM via an I2C interface compliant with SFF-8472 for real-time transceiver status and troubleshooting.
• Warranty and service: Comes with a staged protection policy including 30-day free return, 65-day free replacement and 5 years free maintenance for long-term support.
• Standards compliance: Built to SFP28 MSA and SFF-8472 standards which helps with interoperability in many enterprise environments.

Who It's For

The module is best for network engineers and system integrators who need a low-cost, compatible 25G LR transceiver for switches and servers that accept SFP28-25G-LR style modules. It fits use cases where singlemode duplex LC fiber is already deployed and reliable 10km reach is required for campus, metro or data center spine links.

It is not aimed at users who need multi-rate QSFP aggregation, multimode short-reach optics, or those who require vendor-specific proprietary firmware. Buyers seeking broad multi-vendor interchangeability should verify compatibility with their specific host hardware before purchase.

Pros & Cons

Pros

• Offers native 25GBASE-LR reach up to 10km for singlemode fiber with duplex LC.
• Supports RS-FEC and FC-FEC to help maintain link integrity under heavy load.
• Includes DOM monitoring for live diagnostics and easier troubleshooting.
• Comes with a clear warranty and maintenance policy that reduces replacement risk.

Cons

• Compatibility is focused on Dell-style SFP28-25G-LR ports; customers should confirm host acceptance before buying.
• Not a multi-rate QSFP solution, so it is limited to 25G SFP28 form-factor deployments.

Specifications

Form factor	SFP28
Data rate	25GBASE-LR
Wavelength	1310nm
Link distance	Up to 10km
Connector	Duplex LC
Diagnostics	DOM (SFF-8472 via I2C)
Error correction	Supports RS-FEC, FC-FEC

Our Verdict

The 25G SFP28 LR module is a sensible, value-oriented choice for IT teams that need a straightforward 25G singlemode LR transceiver compatible with Dell-style SFP28 ports. It delivers the expected 1310nm, 10km reach plus DOM and FEC support that matter for stable links, and the warranty and maintenance coverage adds reassurance. Purchase it when you need reliable 25G LR links without paying premium prices for vendor-branded optics.

Frequently Asked Questions

Will this transceiver work in Dell switches?
It is designed to be compatible with Dell SFP28-25G-LR style ports, but customers should verify host acceptance and firmware compatibility before deployment.

What fiber connector does it use?
The module uses a duplex LC receptacle for singlemode fiber connections.

Does it provide diagnostic monitoring?
Yes, it supports DOM via the SFF-8472 I2C interface for real-time status and diagnostics.