HP M52490-B31 is a notebook keyboard with top cover, intended as a replacement part for a compatible HP notebook. HP’s service guide identifies the M52490 family as the backlit keyboard version; this exact regional variant carries the -B31 suffix, which HP maps to The Netherlands.
The keyboard has a Dutch-language layout and backlighting, as identified in the exact-part listing. The illumination helps make the keys visible in dimmer working environments. M52490-B31 is the top-cover keyboard assembly, rather than a standalone external keyboard. Compatibility should be understood within the applicable HP notebook parts configuration.