US Patent 11914796 Low acoustic keyboard stabilized key

An information handling system keyboard has plural key caps coupled to a frame with a vertical travel having a raised position defined by engagement between a stop of the frame and a key cap extension from the key cap. Larger key caps, such as a space bar, shift and enter key cap, are stabilized by including a balancing bar that maintains the key cap level when depressed and released. Acoustic noise associated with key cap movement and balancing bar rattle is reduced by stabilizing the balancing bar with one or more magnets and/or a shaped cushion to reduce balancing bar rattle.