As this AUTENS replacement keyboard is compatible with many series of laptops, please check the pictures and description carefully before bidding. If you are not sure of which kind of keyboard you need, please do not hesitate to contact AUTENS customer service, and we will try our best to help. Or you can press Ctrl+F in the detail page and input your laptop's model number in the frame to check whether this keyboard fits for your laptop or not. Specification Color: Black Letter: English Compatible Model: For Dell Alienware 13 R3 Laptop For Dell Alienware 15 R3 Laptop For Dell Alienware 15 R4 Laptop Compatible Part Number: 0XJYDD, 0CMVJP, NSK-ED1BC, PK1326S1C00 Package: 1x keyboard Disclaimer: AUTENS replacement keyboard are all made by AUTENS. Any usage of other brand's trademarks is only to describe those product's compatibility. Please contact us if you have any questions or there are some problems with the keyboard, we will reply as soon as possible and try our best to solve it.