Here is a more affordable alternative to the rare and expensive Sound Blaster MCV. It is functionally similar, bringing SB-compatible sound capability to systems with an MCA bus, most notably the IBM PS/2 line. All cards are pre-tested in an IBM PS/2 Model 50Z, and come with 3D printed brackets. The end bracket doesn't come attached, in order to fit into the shipping boxes. It is self-explanatory hopw it clips on. This was designed by TubeTime. More details, the required ADF file, and compatibility notes, can be found at their Github page here.