However, I've wondered about repackaging a couple of S9 miners into an SP3x shell using the dual power supplies. It would make a really nice 25 TH/s package.
But isn't 2x S9s just as useable as a pair of SP3X'ed S9s?
I have some miners in a DC full of nosey people. I prefer them to look like servers and I tape up the Spondoolies logo. Also the rats nest of 12V cables always attract attention from the fire safety people.
Edit: actually the most important thing for me is that the SP form factor is compatible with high-density racks because when installed properly with blocking panels the cold air does not leak around the sides of the miners but goes straight through them and sucked up into ceiling.