Logitech UltraX keyboard. Still working like new after 20 years of heavy daily use, 3 different jobs and two house moves, all original. : r/BuyItForLife
ultra flat keyboard logitech 3D Model in Parts 3DExport
Logitech Ultra-Flat PS/2 - USB SLO - Eventus Sistemi
Logitech Ultra X 967353-0403 Silver/Black 104 Normal Keys 6 Function Keys PS/2 Wired Standard Keyboard Keyboards - Newegg.com