Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am building my own computer case, but I am having difficulty finding the form factor specifications for the ATX expansion slots - in particular the maximum height of the slot and the spacing of the screws, as in this image:

enter image description here

The closest I can find it the ATX2.2 specification on form, here.

share|improve this question

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.