Support Fn swap/Invert scrolling on Logitech K400 Plus · Issue #325 · pwr-Solaar/Solaar · GitHub
Logitech K400 Plus Touchpad Keyboard for TV connected PC
Logitech K400 Plus Wireless Touch TV Keyboard with Easy Medi
Logitech K400 Plus Wireless Touch TV Keyboard With Easy Media Control and Built-in Touchpad, HTPC Keyboard for PC-connected TV, Windows, Android, Chrome OS, Laptop, Tablet - Black : Electronics