ThinkPad Active Capacitive Pen supports only ThinkPad S1 Yoga 12 and ThinkPad Helix models that are shipped with a notification flyer, stating that This system supports Active Pen.
Product Overview
ThinkPad Active Pen
ThinkPad Active Capacitive Pen supports only ThinkPad S1 Yoga 12 and ThinkPad Helix models that are shipped with a notification flyer, stating that This system supports Active Pen.