Note: YM2151 is not included. You must provide your own. Features a modern I2C DAC instead of the original YM3012 for modern sound reproduction. Compatible with SFG-01 OPM sound patches and VGMPlay. Note: Does not include MBIOS, so software requiring MBIOS will not work. Audio is output via I2C DAC, not the MSX main audio output. Verified working with MeSX and HX21. Tested with a YM2151 unit from 1992 week 45. Details: https://github.com/piigaa-densetu-two-dai/YM2151_for_MeSX