HP 836623-131 Pointstick is a Portuguese-layout replacement keyboard for a laptop. It is intended for typing on compatible HP notebooks, with a layout suited to Portuguese-language use.
The keyboard is backlit, which helps make the keys easier to see in dim surroundings. The listing also describes it as spill-resistant and identifies it as a Pointstick model.
Listed compatible systems include HP EliteBook 755 G3, 850 G3 and 850 G4, as well as HP ZBook 15u G3 and 15u G4.