Dell Active Pen - PN350M - Stylus - 2 buttons - wireless - Microsoft Pen Protocol - black - for Only works with systems with active pen support : Inspiron 5378 2-in-1/ 5379 2-in-1/ 7378 2-in-1/ 7390 2-in-1/ 5578 2-in-1/ 5579 2-in-1/ 5582 2-in-1/ 7579 2-in