I bought a Supermicro X9SCM-F, but it didn’t come with the IO shield. Woops.
You don’t need one! Use it without!
It doesn’t feel/look right without it. I am half tempted to do that to get this build done though.
Honestly, how much are you looking at the back of the case?
It bothered me too, so I ordered blank IO shields from ebay. Super cheap but took time to arrive. Then sketched out the ports and dremeled as best as I could. I had to do significant sanding to make sure it didn’t just cut my fucking fingers off. If I had to do it again I would have just left it off but I was overly concerned with airflow. Just letting you know that thats an option if your OCD keeps you up at night.
I ended up just ordering one on eBay. Thanks for the suggestion.