GEEZER ?UK Layout?Mechanical Keyboard USB Wired Gaming Keyboard with Multi-colour Backlit Used for Games and Office (Short-Body Design) (55ddd97bf01dc179c3ba7bc724913d77) - PCPartPicker
User manual Exibel SK-051AG (English - 2 pages)
Found my ancient Bluetooth keyboard with built-in trackball and stand. It almost seems that Clas Ohlson predicted Steam Deck years ago. : r/SteamDeck