The Apple 922-8491 is a front panel board assembly for Mac Pro systems, handling power button, LED indicators, and front-panel connectivity. This refurbished component integrates with Mac Pro enclosures to manage system status displays and user interface controls on the front bezel. Compatible with applicable Mac Pro generations that utilize this part number, it supports standard power sequencing and diagnostic LED functions. Typical applications include Mac Pro tower rebuilds, component replacements, and system repairs where front panel functionality requires restoration. This part is tested and guaranteed to function as specified; available via quote.