MB610313 - ICP (Integrated Channel Processor). Basically DMA on steroids for almost all of the main sub components of the system. I believe that the cube, or at least the 25Mhz 030/040 cubes, had two of these.
Once they have, you'll be able to view a graph of their reputation gained over time.
Here's a preview of what the graph will look like:
No reputation gained yet.