LimeSDR Github: different versions

Dear LimeSDR team,

I have a quick question regarding the LimeSDR-UBS Github folder:

The Github contains one “OutputJobs” folder and one “Project Outputs for LimeSDR-USB_1v4_LMS013pad” folder. I figured that the “OutputJobs” folder contains the e.g. Gerber files for the LimeSDR 1.4 Plug.

What is the difference to the LimeSDR LMS031 pad version? I assume it is just the kind of the USB connector, or are there other differences between the two versions?

Thank you very much for your help!
Best regards