There was some discussion of a related topic earlier today in this thread: <a href="https://news.ycombinator.com/item?id=30860259" rel="nofollow">https://news.ycombinator.com/item?id=30860259</a><p>In particular, this comment was about PCI-E: <a href="https://news.ycombinator.com/item?id=30860903" rel="nofollow">https://news.ycombinator.com/item?id=30860903</a>