Complex sentence: Although hardware keyboards are available with dual keyboard layouts (for example Cyrillic/Latin letters in various national layouts), the on-screen keyboard provides a handy substitute while working at different stations or on laptops, which seldom come with dual layouts.
Split into simpler sentences: Although hardware keyboards are available with dual (keyboard layouts), (for example Cyrillic/Latin letters in various national layouts). The on-screen keyboard provides a handy substitute while working at different stations or on laptops, which seldom come with dual layouts.