Product Details Reviews Shipping & Returns Product Details IBM ThinkPad X40 X41 Laptop Key Replacement Please make sure your X40 X41 laptop key retainer hinge clip match up to the retainer key type below, or IT WILL NOT FIT correctly. If your hinge clip does not match, please contact us as we update our inventory on a daily basis. IC01 IC39 Reviews 1 Review Hide Reviews Show Reviews –> Right key — Just What I Needed 5 Posted by Unknown on 30th Mar 2015 It astonished me to learn I can order individual keys, especially for a laptop as old as my IBM ThinkPad X40 — about 12 years old! Got just the right one; haven’t yet installed it, but I’ve practiced with other keys and foresee no trouble. One caveat: If I had noticed that the shipping option I chose (USPS first class) didn’t include a tracking number, I would have upgraded to one that did. My March 13 order didn’t arrive till March 30 — it WAS almost coast-to-coast, so perhaps that was part of the reason. On account of the delay, the vendor shipped a second key, and both arrived the same day. Go figure! (And choose a shipping option that gives tracking.)