Some recent motherboards support TPM via a header socket on the board, if you've bought a mobo recently check if it had it and I'd be tempted to try and find a module now because they probably won't make them in a few years time, due them being integrated into the board.
I did look into the TPM add on situation
most of the computers have TPM version 1.2 and no header for an add on TPM
the very latest update of windows now disregards the TPM v1.2 chip and states "Standard hardware security not supported"
so Microsoft are insisting on motherboards only a couple of years old
how many perfectly good computers will get binned because of this TPM 2 only requirement to run windows 11
not very environmentally friendly that's for sure !
Windows 11 hasn't been announced yet till tomorrow
it must be the worst kept secret ever , or leaked for publicity
it's been a week or so since Windows 11 got "leaked " but already the tech geeks have figured a simple way to allow the running of windows 11 on a computer without TPM 2
windows 10 is supposed to be supported till october 2025
unless Microsoft decide windows 10 needs TPM 2 as well
Microsoft have a big announcement tomorrow anyway
I wonder what that could be