I too will be looking to initially power about 20 Gridseed miners, 2 controllers and 2 USB hubs. Scrypt only with some type of safety against an accidental dual mode setup would be ideal.

Would like to use a Corsair AX series modular power supply with the cables plugged directly into the power supply.

I think 10 units per PCIe cable should be considered. I believe this would allow me to run 80 Gridseed miners off an AX1200 using less than 800W for the miners?

My preference is 15-18 leads per PCI-E cable, and scrypt only.  I would not run these in dual mode.  Having an inline fuse would be useful in case of mistakenly enabling dual mining mode.

As for length, I'd go up to 1 meter for flexibility. With a single cable going from 20cm and scaling up in groups of 2s or 4s to 100cm.

I'm ready to purchase enough for 50 miners right away, and likely for another 100+ miners in the near future.

Hey guys,

Thanks for all the input, it is appreciated.  I currently have two designs that I am refining right now and am also recruiting some local help to get this done.

The first design is a simple 5 RA DC plug cable going to a single PCIe connector. I have to work out the the exact length and pitch needed for some flexibility in miner position. If anyone has some measurements on how long 5 miners are end to end 'a la Spotswood' please post it here. Also, if you could measure the power plug distance that would be helpful as well. Thanks.

The other design is a modular type cable that could have up to 15 plugs per PCIe connector. So far I am having trouble sourcing heavy duty parts for this but I am on it. The nice part about this design is if I can make it one would only need to purchase the PCIe adapter and up to 3 'splitters' depending on how many miners they have. This way I can have single plugs for dual miners and up to 5 plugs for scrypt ones all from a single PCIe wire pair.

What do you guys think about these ideas? I will try to put up basic drawings later to give a feel for the designs but right now I must get back to work. Later

 

I would love 15 plugs per PCIe connector!
Only scrypt mining anyway.

I would be interested in enough cables for 20 Gridseed's in scrypt mode only.

I've been thinking about this and might have a solution(might be completely off as well).

If I understand this correctly you can pull the power for 5 dual gridseed miners or 15 scrypt gridseed miners off one PCIe port.

Why not take the simple route: create a cable for 5 dual miners and offer up extension cords of 3 plugs to make these work for scrypt miners. Give these clear names like: "gridseed power cord" and "gridseed SCRYPT extension". I think this should make this relatively idiot proof.

You might also be able to make a complete package(this is written without knowledge of the power usage for the hub and controller):
"gridseed power cord" with 4 dual miner plugs and added wires for the usb hub and controller.
"gridseed SCRYPT extension" with plugs for 4 gridseed devices.
maybe a power button/cable/whatever to turn on the PSU?

edit: To make this more modular you might be able to just go with the 5 plug power cord and offer extensions cords for controllers and usb hubs.
also: if people start daisychaining these extension cords and something blows up/burns I would think this is on them. You have tried to protect them (with the names)and they chose to ignore you

slightly different idea:
Default package:
"gridseed power cord" with 5 plugs that do not fit the gridseeds.
"gridseed dual mining plugs" converts unusable plug into dual miner plug

Optional extras/replacements for convertor plugs
"gridseed SCRYPT extension" with plugs for 3 or 4 gridseed devices.
"gridseed hub and controller extension" name says everything.(this could have different parts depending on the customers order/hardware)
power button to turn on the PSU

Looks awesome Cablez. Can't wait to grab some of these.

I agree with incognitoworker. I plan on getting into scrypt mining with these and would like to see 12 miners per pcie plug. Please let me know if this will happen as well. I will keep watching the thread for updates.

Glad to be of help, don't forget my name when I order!!!!