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Optical Transceiver
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The Difference Between SFP+ And SFP、XFP

  • June 20. 2016

In order to make the people learn the difference between SFP+ and SFP、XFP, and avoid unnecessary trouble to the customer, so we share some information for them .


10G optical module has experienced the development from 300Pin, XENPAK, X2, XFP, finally realize the transmission of 10G signal with the same size as SFP, this is SFP+. SFP+ meets the requirements of the equipment to optical module high-density, has gradually replaced XFP and become the mainstream of 10G market.

SFP package---Hot plug small package module, the highest rate is up to 4G, usually connect LC interface.
SFP+ package---Standard package, the work rate is 10G, can meet the application of Ethernet 10G.
XFP package---A standardized package of serial 10G optical transceiver modules.

The advantages of SFP+ optical module:
1、SFP+ has a more compact outline size than the X2 and XFP packages (same as SFP);
2、It has directly connected with the same type of XFP, X2, and XENPAK;
3、Cost is lower than XFP, X2, XENPAK.

The difference between SFP and SFP+:
1、The appearance and the size of SFP and SFP+ are the same;
2、The highest rate of SFP is up to 4G,the rate of SFP+ is 10G;
3、The protocol specification of SFP:SFP:IEEE802.3、SFF-8472 ；
4、SFP+ supports DDM.
（http://www.etulinktechnology.com/blog/digital-diagnostic-monitoring_b18）

The difference between SFP+ and XFP:
1、SFP + and XFP both are 10G optical module, and can be connected with other types of 10G modules;
2、The appearance and the size of SFP+ is smaller than XFP;
3、Because of the smaller size, SFP+ moves the signal modulation function, Serial / deserializer, MAC, clock and data recovery (CDR), and electronic dispersion compensation (EDC) function to the main board card from modules;
4、Compliance Agreement of XFP: XFP MSA agreement;
5、Compliance Agreement of SFP+: IEEE 802.3ae、SFF-8431、SFF-8432；
6、SFP+ is a more mainstream design;
7、The protocol specification of SFP+:IEEE 802.3ae、SFF-8431、SFF-8432。
Although they have some differences,our module can be compatible with Cisco, Avago, Extreme, HUAWEI, H3C, ZTC, Avago，Extreme，Zyxel, Juniper,  Alcatel, D-Link, HP switch etc.

In order to make the customers more understand our industry products, ETU-Link will update the blog every week, welcome customers from all over the world come to visit our website.


If any questions, can feel free to contact our sales,they will answer your question within 24 hours： sales@etulinktechnology.com / elva@etulinktechnology.com/sales01@etulinktechnology.com/sales02@etulinktechnology.com/ sales03@etulinktechnology.com / sales05@etulinktechnology.com/sales06@etulinktechnology.com/ /sales07@etulinktechnology.com。

All sales will be offer the best serice to our good friends (customers)!


Related reading: Active Optical cable SFP+ transceiver compatible

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