Abstract: A latch is provided for holding stacked expansion boards above a mother board that includes an auto-lock feature that triggers when an expansion board is installed and is reset when the board is removed. The latch includes a trigger arm above which a first latch slider and a second latch slider are stacked. Movement of the trigger arm caused by placement of an expansion board releases the first latch slider to an extended position that holds the expansion board in place. Downward movement of a second expansion board against the second latch slider forces the second latch slider back until the second expansion board is received by a gap between the first and second latch sliders.