This is one goofy contraption. why the obsession with PCI connectors? Is that really the best solution for industrial scale mining?
I prefer it greatly over a proprietary power supply. High end efficient used +12V server power supplies will beat new every time, not only in price but performance as well.
Buy yourself an automatic wire cutter/stripper machine, some 5000ft spools of 16awg primary wire, reels of crimping pins and bags of end connectors. And you will never have to buy a PCI-E cable again, and you can make them just the length you need.
not sure that would be very good for my 2 MW facility. that is a shit ton of work!
I priced it out and with my 1 MW facility it would have added at least 100K USD to the overall build out cost. I'm willing to do a lot of work to get that. Most of that would be in the overpriced power supplies that are bundled with the miner making the overall cost per ghs that much more. Saves money ongoing because I can guarantee you my server power supplies are more efficient than say the ones in a S4. 1-2% savings of 1 MW let alone 2 MW will add up quick.
The key is the automatic wire cutter stripper machine: https://www.youtube.com/watch?v=3vb0RM1xMCw
I liked the screw terminals of the S1 but the plug and plug of pcie on both ends using the breakout boards allows for easier swapping of equipment. Which, when mining on an industrial level that is pretty much an ongoing task.
Older pic showing clean pcie install: http://i.imgur.com/E6Ju4Us.jpg
EDIT:
http://i.imgur.com/F4ylA08.jpg
http://i.imgur.com/mi2T3Tt.jpg
Also don't forget the modularity it has in that it allows us an upgrade path to new hardware without having to buy the power supplies all over again.
For medium amount of cables (lets say 1500+ cables), I agree that the automatic wire cutter and a semi automatic wire crimper are probably the way to go if you have someone or some time to operate them.
For even better efficiency, and for more than 5000 cables, I'd probably suggest to go for the fully automatic cutting/crimping machine:
https://www.youtube.com/watch?v=XUzsm2FQteA
The cost is roughly $6k for the automatic machine.
Semi automatic crimper + automatic wire cutter/stripper will cost $2k to $3k depending on options and brand.
Of course, it takes a lot of time for the assembly of the cables.
So, as I said from the beginning, it's only a good option if you have the time or someone to make the cables.
If you don't, buying the cables and server PSUs + breakout boards is the most economical option.
There are pros and cons to use server PSU , like 2800W , you buy from china , it is 6KG each, it will be expensive shipping cost .
