If you want to the PM 747 on a PC, use an audio interface (e.g., Behringer UMC22) connected to the keyboard’s headphone or line-out jack.
It looks like you’re looking for a for the Bontempi PM 747 keyboard, along with an updated review . Bontempi Keyboard Pm 747 Driver Download UPD
Would you like help connecting the keyboard to a modern computer for recording instead? If you want to the PM 747 on a PC, use an audio interface (e
If it has a – that’s even older and not supported on modern PCs without legacy hardware. use an audio interface (e.g.