Many vintage recording studios and graphic designers maintain Mac OS 9 environments to run legacy versions of Pro Tools, QuarkXPress, and Adobe Photoshop 5.5/6.0, which utilize specific hardware acceleration cards.

NuBus-based PowerMacs (e.g., 6100, 7100, 8100) and early PCI Macs (e.g., 7200, 8500) are officially unsupported by 9.2.1 without third-party utilities like Mac OS 9 Helper .

Under the tab, set the RAM size to 128 or 256 MB. Specify the path to your MacROM.rom file.