I have Nexus 7000 sup cards side by side in this picture and the injector buttons are different. I was wondering if they could be 2 different models of Sup cards or have they just changed the ejectors? I replaced another Sup card last night and it was identical to the one on the right. I am worried about the differences.
You should be able to compare the part numbers between your old sup and the new one. If they are the same than they probably have changed the injector.