The HP 918555-BG1 top cover and keyboard is a replacement assembly for HP ProBook x360 11 G1 and G2 computers. HP lists this part number for use in Switzerland, identifying the regional variant of the assembly.
The smoke-gray assembly combines the keyboard with the laptop’s top cover. It includes the keyboard cable, top-cover shielding, and magnets, bringing these parts together as one service component for replacement of the keyboard/top-cover assembly.