HP 855767-001 Smart Card Reader Board is a laptop component for smart card reading. It is identified as the SPS smart card reader board and is intended for 15-inch models.
The part is listed for the HP ProBook 655 G2, making it a model-specific option for restoring the smart card reader function in that laptop. Its purpose is straightforward: provide the smart card reader board used by the computer. The item is the board itself; no additional contents are confirmed.