HP 918388-001 Hall Effects Sensor Board is a replacement service part for the HP Pro x2 612 G2 tablet. It is identified in HP’s parts catalog as the Hall effects sensor board, and is also listed as a PCBA Hall sensor board.
The board connects to the display cable and is secured to the tablet’s middle frame with a Phillips screw. HP’s service guide provides removal and replacement steps for this component, making the part relevant when servicing that specific tablet assembly.
This part is identified for the HP Pro x2 612 G2; no other compatible models or package contents are established by the cited product information.