The HP 826387-001 power button board is a replacement part for the power button function in compatible HP notebooks. It is listed for the ProBook 430 G3 and ProBook 440 G3, giving these models a specifically identified board for this control.
This part is intended for repairs involving the power button board. Its reference number, 826387-001, identifies the board and helps distinguish it from other HP button boards. The listing confirms the part type and compatible notebook models; it does not specify dimensions or package contents.