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Optical Transceiver
Optical Transceivers Introduction
Home Optical Transceivers Introduction

How was 25G Ethernet technology born?

  • August 02. 2017
Energy saving and cost are two important factors that need to be considered when deploying data centers. The price of 40G optical module and 100G optical module is too high and the power consumption is too large, and the speed of 10G optical module can not meet the demand of network. Therefore, 25G SFP28 optical module was born in this case, just to make up for the deficiency between the them, greatly improve the port density and reduce the cost of network deployment, and the power consumption is relatively low. Today, let's talk about what advantages 25G has?

The 25G SFP28 is the optical transceiver with a transmission rate of 25Gbps. Mainly used in 25G Ethernet and 100G (4x25Gbps) Ethernet, and it provides the most energy efficient way to meet the growing demand of next-generation data center network.


IEEE 802.3 specifies the 25G Ethernet interface standard

Physical layer

Interface standard

Multimode fiber

25GBASE-SR

High speed cable (copper cable)

25GBASE-CR

High speed cable (copper cable)

25GBASE-CR-S

Electronic backplane

25GBASE-KR

Electronic backplane

25GBASE-KR-S

Twisted pair

25GBASE-T


Advantages of 25G Ethernet technology:
Optimum input / output (I/O) performance and fiber capacity;
2.5 times of 10G Ethernet performance；
Higher port density;
Save capital and save operating expenses;
The required ToR switches and cables are less in number;
Lower cost and less power consumption;
25G more suitable Ethernet contracts standard, widely application.
25G Optical module

So far, 25G Ethernet has become more and more popular in the industry, SFP28 SR and SFP28 LRLR are favored by data center users because they can provide economical and efficient solutions for 25G and 100G networks. ETU-Link can provide a variety of brands of 25G SFP28 optical module, not only cost-effective, compatibility is also very good, welcome to contact us: sales@etulinktechnology.com.

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