Yes, it is pretty common these days. Most decent to high-end desktop PC motherboards seem to include it these days, and it can also be added easily now via USB

Yes, it is pretty common these days. Most decent to high-end desktop PC motherboards seem to include it these days, and it can also be added easily now via USB 3 dongle or newer USB/thunderbolt docks (e.g. on laptops, where it seems to not be that common to be built-in).