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The difference of SFP+, SFP and XFP

What is the difference of SFP+, SFP and XFP? The 10G module has been developed from 300Pin. XENPAK, X2, XFP and finally achieve with the same size as SFP which can transmit 10G signals called SFP+.

 

SFP by virtue of its small cost and other advantages to meet the needs of high-density equipment, SFP+ has been replaced the XFP 10G modules and became the mainstream.

 

The advantages of SFP+ modules:

 

  1. SFP+ has a more compact form factor package than X2 and XFP.
  2. It can connect with the same type of XFP, X2 and XENPAK directly.
  3. The cost of SFP+ is lower than XFP, X2 and XENPAK.

 

The differences between SFP and SFP+:

 

They have the same size and appearance, but in different standard which SFP is based on IEEE802.3 and SFF-8472.

 

The connection between XFP and SFP+:

 

  1. Both of them are 10G fiber optical modules and can connect with other type of 10G modules.
  2. The size of SFP+ is smaller than XFP, thus it moves some functions to motherboard, including signal modulation function, MAC, CDR and EDC.
  3. XFP is based on the standard of XFP MSA
  4. SFP+ is compliance with the protocol of IEEE802.3ae, SFF-8431, SFF-8432.
  5. SFP+ is the mainstream design.

 

Transceiver Data rate Terms Distance Wavelengths

SFP Transceiver

sfp fiber optical transceiver

SFP fiber optical transciever

155M/622M/
1.25G/
2.5G/3G/
4.25G

Dual fiber

Single Fiber/WDM

CWDM

DWDM

300m/2km/
10km/15km/
20km/40km/
60km/80km/
100km/120km/
150km

850nm/1310nm/1550nm

1310nm/1490nm/1550nm

1270nm-1610nm

ITU17~ITU61

SFP+ Transciever

sfp+ lr transciever module

SFP fiber optical transciever

6G/8.5G/10G

Dual fiber

Single Fiber/WDM

CWDM

DWDM

220m/300m/
2km/10km/
20km/40km/
60km/80km

850nm/1310nm/1550nm

1270nm/1330nm

1270nm-1330nm

ITU17~ITU61

XFP Transceiver

XFP ER transceiver

XFP transceiver

10G

Dual fiber

Single Fiber/WDM

CWDM

DWDM

220m/300m/
2km/10km/
20km/40km/
60km/80km/
120km

850nm/1310nm/1550nm

1270nm/1330nm

1270nm-1610nm

ITU17~ITU61

 

 
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