HP 840801-211 is a Hungarian-layout keyboard for typing on a compatible HP notebook. Its layout is intended for Hungarian-language use, and the keys are backlit to make them easier to see in dim surroundings.
The listing identifies the HP ProBook 645 G2 as a compatible computer. This model-specific fit makes the keyboard suitable as a replacement for that notebook when its existing keyboard needs replacing. The unit is black and made from ABS synthetic material. It has no numeric keypad, keeping the layout without a separate number block.