SFP28 optical module and SFP/SFP+

[kevin wilson]

Is there difference in physical form between SFP28 optical and SFP/SFP+ ?
Should SFP28 optical module (like the one in the following link) fit into SFP/SFP+ cage ?
https://www.intel.com/content/dam/w...riefs/ethernet-sfp28-optics-product-brief.pdf

Kevin

 

[i386]

Fit physically? Yes.
Work? Maybe.

 

[Jerry Renwick]

SFP28 is the same from factor as SFP+. SFP+ module is designed to work up to 10G per lane, it can't support 25G. But whether SFP28 can fit into SFP+ cage and transmit 10G, it depends on the switch.

 

[OPTCORE SFP]

The have similar physical specification, but can not work with SFP/SFP+