HP PCBA Volume Board 902370-001 is a replacement part for restoring the volume-board function in supported HP x2 devices. It is identified as the volume board in HP x2 parts listings.
The board is listed for the HP x2 10-p000 laptop and the HP x2 Detachable 10-p020TU. The 10-p020TU parts list identifies a separate volume-board cable, part 902353-001.
This listing describes the board itself; the separate cable is not stated to be included.