Cool-See Black Laptop Non-backlit Keyboard For IBM Lenovo ThinkPad T540 T540P T550 L540 W540 W550S W550 W541 Series 0C44913 04Y2348 04Y2426 04Y2387 04Y2465 100% replacement and high quality Six screws on the back The keyboard also can work well E531E540 Series.You just need to remove two screws.It's easy to complete the process. Package Include: ribbon cable comes with keyboard Please check asin B073PQTDN4 or B071KG1MYV if you have the need for repairing and disassembling the computer or mobile phone.They can meet your different needs(Save 1 dollor automatic when u buy together)