After a long pause, here’s another guessing game. Do you recognize the five peripherals below? This should be very easy since the manufacturers’ names are clearly visible, only the model numbers got “lost”.
This is all 1980s-1990s hardware from (obviously) Roland and Yamaha. The oldest module was made in 1987 or so, the newest is 1999-ish.
At least three of these modules are explicitly supported by some/many DOS-based games from the late 1980s and early 1990s. The remaining two work more or less very well by virtue of backwards compatibility with one of the others.