In that post it does not mention the different versions of bases, so I am showing here that there are different models of boards, the identification is the final number, SN001-1, SN001-2, SN001-3, SN001-4. Each board model serves a number of pins. Because some sellers advertise wrong, someone can buy the wrong adapter if they don't know what the difference is.
I found the post from the link below, which makes reference to this repository:
https://proghq.org/wiki/index.php/TL866_TSOP48_adapter
In that post it does not mention the different versions of bases, so I am showing here that there are different models of boards, the identification is the final number, SN001-1, SN001-2, SN001-3, SN001-4. Each board model serves a number of pins. Because some sellers advertise wrong, someone can buy the wrong adapter if they don't know what the difference is.