The SEGA-M signifies a little-known hardware found in several early Sega’s consoles, primarily the Sega Master System and select add-ons. In essence , it acts as a miniature sound unit , https://segamarmoiredecommande616295.laowaiblog.com/41637536/decoding-sega-m-the-it-constitutes-plus-what-does-this-do