Is the 10503 — Module SFP28 25 Gbps Extreme Networks — 25 Gb ESR MMF SFP28 Module covered by manufacturer warranty?

Yes, the 10503 — Module SFP28 25 Gbps Extreme Networks — 25 Gb ESR MMF SFP28 Module sold by OPTINOC is authentic Extreme Networks equipment with manufacturer warranty.

What are the delivery times?

OPTINOC ships in Europe within 24 to 72h for in-stock items. For made-to-order references, count 5 to 10 business days.

Click "Request a Quote" or contact us directly. We reply within 2 business hours.

10503 — Module SFP28 25 Gbps Extreme Networks — 25 Gb ESR MMF SFP28 Module

Name: 10503 — Module SFP28 25 Gbps Extreme Networks — 25 Gb ESR MMF SFP28 Module
Brand: Extreme Networks
SKU: 10503
Availability: PreOrder

The 10503 module from Extreme Networks is an ESR-standard SFP28 25 Gbps transceiver, rated for multimode fiber (MMF) links with an extended reach of up to 300 meters. This 300 m MMF reach clearly sets it apart from conventional SR modules, offering greater flexibility across large-footprint datacenters.

This ESR module is particularly well suited to environments where inter-rack distances exceed the 100-meter ceiling typical of SR optics, such as large hyperscale datacenters or campuses with existing OM3/OM4 fiber infrastructure. The LC duplex connector ensures quick installation. Genuine Extreme Networks hardware, manufacturer warranty.

10503 — Module SFP28 25 Gbps Extreme Networks — 25 Gb ESR MMF SFP28 Module

10503 — Module SFP28 25 Gbps Extreme Networks — 25 Gb ESR MMF SFP28 Module

Key highlights

Who is it for?

Extreme Networks

Products in the same range

10331 — Module CFP2 100 Gbps Extreme Networks — CFP2 SR10 Module

10330 — Module CFP2 100 Gbps Extreme Networks — CFP2 LR4 Module

10200 — Module XFP 10 Gbps Extreme Networks — Tunable DWDM XFP Module

10125 — Module XFP 10 Gbps Extreme Networks — ZR XFP Module

Related guides and comparisons

How to choose of modules QSFP+ 40G

Guide d'achat modules SFP : compatibilité, throughputs and portées

Frequently asked questions

Have a network infrastructure project?