What is the difference between eSFP optical module and common SFP module?
SFP is Small Form-factor Pluggable
eSFP is enhanced Small Form-factor Pluggable.
There is no difference about main function. If optical power, sensitivity and the distance are consistent, they can be changed.
Compared with SFP, eSFP has added function. e.g. eSFP supports the monitoring of optical power, but traditional SFP optical module does not support it.