USB Audio & Power Button PCBA for X360 M6-AR (M6-AR004DX) — 856792-001 / 448.07N02.0021 / 448.07N02.0011

Replacement USB PCBA that combines audio and power button functions for the X360 M6-AR series, including model M6-AR004DX. This board corresponds to part numbers 856792-001, 448.07N02.0021 and 448.07N02.0011 and is intended as a direct swap for a failing audio/USB or power button assembly. Verify the listed part numbers and your M6-AR model before installation to ensure compatibility.