HP Pen Silver 1MR94AA For LaptopsFeatures: Latest N trig technology. Improved technology allows you to write, draw and navigate with precision. Precision tip. Precision tip and pressure sensitivity gives you complete control, as if it's pen to paper. Endless possibilities. Works with a range of apps for anything from drawing to computing. Ink to text. Write naturally while your PC instantly converts your handwriting to text Hardware compatibility : Available on select HP Spectre, HP