Cool-See Black Laptop backlit Keyboard For IBM Lenovo ThinkPad T540 T540P T550 L540 W540 W550S W550 W541 Series 0C44913 04Y2348 04Y2426 04Y2387 04Y2465 [6 Screws on the Back] Replacement and high quality,Replace your faulty, cracked or broken keyboard Color: Black. Layout: US Backlit Layout The keyboard is 14.13 inch length,you will need very small flat head and a very small Phillip's head screwdriver for installation. Each keyboard is tested before shipping The model listed are compatible with each other.Perhaps some different design or color.