Apple 922-8619 microphone cable assembly designed for MacBook Air and MacBook Pro 13-inch aluminum unibody models (mid-2008 through early 2015 generations). This internal cable connects the built-in microphone module to the logic board, enabling audio input for calls, recording, and system functions. Part number 922-8619 is a direct replacement for original equipment and restores microphone functionality in units experiencing audio input failures or degraded performance. Compatible with A1237, A1304, A1369, A1466, A1502, and A1989 MacBook chassis. Installation requires partial disassembly and is best performed by trained technicians. Typical applications include repair and refurbishment of legacy aluminum MacBook systems. Tested and guaranteed functional; available via quote.