Cherry KC 4500 Ergo Wired Keyboard - BlackWith the Cherry KC 4500 Ergo Wired Ergonomic Keyboard, you can get relief from sore shoulders, cramps, and other uncomfortable side effects brought on by poor posture. Your hands and arms naturally assume a more comfortable position thanks to its unique design. Your shoulders and back are relieved, and your relaxed posture lessens stress. With its extremely soft memory foam palm rest, you can rest your hands comfortably while avoiding pressure points.