Original Dell 1525 1420 1520 1521 KeyBoard NK750   TESTED == Works Great!  All keys work  ==     Comes with 14 days warranty if not as described--  please look carefully at the picture and be sure this is the part you need.    If for some reason you are not satisfied with received item, e-mail us through eBay message system. Don't leave negative feedback, money back guaranteed! We value your time and business.