Model M Buckling Spring Clicky Keyboard, by Unicomp. This keyboard has the look and feel of the vintage 1995 IBM keyboard model M. Includes a USB adapter so it is ready to use with windows or iOS systems! The New Model M buckling spring keyboard has the same mechanism, feel and layout as the original IBM Model M keyboard, but with a slightly smaller footprint. With the much-loved buckling spring key design these keyboards have been prized by computer enthusiasts and robust typists because of the tactile and auditory feedback of each keystroke. Open box, not used.