The rear of my new case has two rows of seven square holes. I think there should be a cover if these are not in use. Asked Antec and they told me to look in their parts or return the case. Really poor answer. Can anyone do better than Antec.
After looking at the case in Newegg the back view does not show anything there and the picture that has the case psckage contents doesn't show anything to go there. Looking at my case it has a similar section of holes and to tell you the truth a lot of cases have that and it's just for ventilation in case you have more fans blowing in than out it would prevent the pressure from building up.