HP 836307-251 is a Russian-region keyboard assembly for replacing a compatible laptop keyboard. Its regional layout is the defining feature of this variant, making it suited to typing in Russian.
The assembly is described as without backlighting, so it is a straightforward keyboard option without illuminated keys. Its construction includes a spill-resistant design with a drain and DuraKey coating, features intended to help manage incidental liquid exposure at the keyboard surface.
HP’s service guide presents keyboard removal and replacement as a service procedure. This part is therefore intended for keyboard replacement in a compatible system; the cited information does not establish compatibility with every HP laptop.