title: What is the meaning of PNPDeviceID value?
body: <p>I am trying to find a globally unique identifier of video cards. So I using wmi to find it then I choose PNPDeviceID which seems to be what I need.</p>
  
  <p>But I am not sure whether it is globally unique among lots of computers. So I want to check the value of PNPDeviceID.</p>
  
  <p>The wmic command used is:</p>
  
  <pre><code>wmic path win32_videocontroller get PNPDeviceID
  </code></pre>
  
  <p>The PNPDeviceID is like:</p>
  
  <blockquote>
    <p>PCI\VEN_10DE&amp;DEV_1245&amp;SUBSYS_00007377&amp;REV_A1\4&amp;1DDDA1E7&amp;0&amp;0008</p>
  </blockquote>
  
  <p>I guess Ven_10DE is vender id, dev_1245 is device id, subsys_00007377 is a subsystem id, rev_a1 is revision id. </p>
  
  <p><strong>But what subsystem means? What is the meaning of "4&amp;1DDDA1E7&amp;0&amp;0008" and "PCI"?</strong></p>
  
  <p>Thank you!</p>