A:AnswerYou can easily find this out with the model # of the laptop. There are hundreds of HP Elitebook X360 models. This website will help you find the model number: https://support.hp.com/us-en/document/c00033108
After that you can use the HP Virtual agent to check for pen compatibility. Ask the question which pen works with my laptop, and then follow the script. You will need the model # for this.
https://virtualagent.hpcloud.hp.com/