hard_drive_0_controller

The option documentation is properly formatted yet

Default: uae Example: ide0 Since: 2.1.1

You can use this option to specify the HD controller for this drive, for example to use an emulated IDE controller for A600/A1200.

Warning: Using IDE instead of the default UAE controller is slower, and lacks features compared to the UAE controller. Also, you risk silently losing data with drives >= 4GB due 32-bit wraparound (lack of full 64-bit addressing support).

Source: https://github.com/FrodeSolheim/fs-uae/blob/master/docs/options/hard_drive_0_controller