Product Details Reviews Shipping & Returns Product Details Gateway NV51B Replacement Laptop Key Gateway NV51B Replacement Laptop Key WHAT COMES WITH EACH LAPTOP KEYBOARD KEY ORDER The Key Cap This is the piece of plastic that has the letter on it. The Retainer Clip The plastic or metal sisscor clip pieces that hold the key cap to the base of the keyboard. The Rubber Cup This is the piece of rubber or plastic that acts as the spring to rebound the key after your press it. Please identify your KEY TYPE, There are 4 versions of the same keyboard, so please make sure to identify the retainer key type that best matches your keyboard. If you need more info please visit the how to order section. AC28 AC29 AC38 AC40 Reviews 1 Review Hide Reviews Show Reviews –> Replacement Key 5 Posted by Cary on 16th Dec 2017 Worked. Pictures of variant keyboards of great value. And, much less expensive than replacing the keyboard on a laptop. Will be back.