To anyone who might be misled by this post, those photos are not of a 500 GH/s BFL MiniRig.
- The first couple photos are of an early dev unit built with only a few boards and no control module.
- The second group of photos are of an FPGA mini rig prototype from 2011.
No wonder I was confused, since the MR SC was supposed to come with 2 1500W PSUs, and the one in the picture has only one.