Product Details Shipping & Returns Product Details Asus X42F Laptop Key Replacement This 100% OEM X42F laptop key will offers perfect fit & finish, please note there seems to be 3 different versions of the SAME keyboard, because of different keyboard vendors, the hinges under the key cap vary in shape and color, look below and see which version yours match up with, you will need this info in STEP 2. AS01 AS38 AS40 Your keyboard keys should look the same as below. Shipping & Returns