PERIBOARD-107B is a classic and functional, yet sturdy computer keyboard with curved silent membrane keys and ergonomic support for your natural hand position, making typing quiet and enjoyable. The old-timer keyboard has extended durability and a reliable 10 million times key press life cycle. The cable is 1.8 meters (5.9 feet) long with a PS/2 connector compatible with PS/2 serial keyboard ports, equivalent to the old IBM Model (e.g. IBM AT/PS2 Keyboard). The full-size layout with a numerical pad can offer easy installation without a driver. It is an ideal keyboard for office and work-from-home users with good compatibility with Windows 7,8,10, and 11.