A key supported by a scissor mechanism including interlocking scissor members assembled to mutually pivot along a pivot track. A first scissor member may include a pivot track and an up-stop track and a second scissor member may include at least a first and second extension portion positioned within the pivot track and the up-stop track respectively. When the key is depressed, the first extension portion may slide and at least partially pivot or rotate within the pivot track, and the second extension portion may slide within the up-stop track.