ORIGINAL IBM Lenovo Thinkpad Keyboard 42T3904 42T3937 For IBM Lenovo Thinkpad US LayoutKeyboard Brand New & Genuine Compatible with Part Numbers: 42T4002 42T3970 42T4066 42T4034 42T3937 42T3904 39T7118 39T0988 39T7178 39T7148 39T0958 39T0928 42T3209 42T3177 42T3273 42T3241 42T3143 42T3109