Features White LED indicator Wireless - Bluetooth 4.2, Microsoft Pen Protocol Buttons: 3 Colour: Black Designed for: Inspiron 13 5379 2-in-1, 13 7378 2-in-1, 15 5579 2-in-1, 15 7579 2-in-1, 7373 2-in-1, 7386 2-in-1, 7573 2-in-1; Latitude 3189, 5175 2-in-1, 5285 2-in-1, 5289 2-In-1, 5290 2-in-1, 7275, 7285 2-in-1, 7389 2-in-1, 7390 2-in-1; Venue 10 Pro, 8 Pro; XPS 12 9250, 13 9365 2-in-1, 15 9575 2-in-1