2013 Mac Pro: Innards
A big thanks to Other World Computing for loaning the 8-core 3.3 GHz Mac Pro and authorized Apple dealer B&H Photo for loaning the 6-core 3.5 GHz Mac Pro.
Here are the innards of the 2013 Mac Pro. The 134mm-long memory module (OWC 64GB module) should give a good idea of just how compact the Mac Pro really is.
Click for larger image.