I reply to old message, but perhaps still relevant:
The 2.1mm and 2.5mm specs refer to the size of the hole in the plug, likewise to the size of the pin in the dc jack on the Gridseed.
I use a 5.5mm x 2.1mm plug for mine.
The fact that a 2.5mm plug has worked for some miners is because .4mm is a tiny difference, and the plug with the larger hole will still make contact. But the snugger fit is better.
Radio Shack Connector "M" is 5.5mm x 2.1mm.
They have another connector ("K" I think) that is 5.0mm (outside diameter of barrel) x 2.1mm. This one will work, also.
If you dont solder, here is an Amazon search arg for such plugs with screw terminals. They work nicely, and are stupid cheap:
niceEshop 10 Pcs 2.1x5.5mm Male Jack DC Power Adapter for CCTV Camera
I'm not having much luck finding the individual plugs on Amazon, anyone have any suggested plugs? (Need some quick)
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You seem to be giving some bad advice here. If the power connectors are 2.5mm why suggest that a 2.1mm connector is what is required? Maybe yours did take a 2.1mm, that is no garantee that all will. Much better to have the correct size surely?
Also that cable you are suggesting there is not rated for the sort of current in use here. Ok for LTC only mode but if you are using 2 of these with 30A each going through them that is asking for a problem. A single socket of this type cannot possibly handle 30A.
ok, you're pointing out some good stuff ...
for now I can only say I experienced that my plug is working with 2.1-5.5mm.
https://bitcointalk.org/index.php?topic=477709.msg5297838#msg5297838On Diginforce it is writen down as 2.5,as I understand.
http://i.imgur.com/Ve9YbAF.pngthanx for the advice
Also that cable you are suggesting there is not rated for the sort of current in use here. Ok for LTC only mode but if you are using 2 of these with 30A each going through them that is asking for a problem. A single socket of this type cannot possibly handle 30A.
maybe you can give us an advice on what cables to use from the power supply ...
an other questions that some are asking me, is there a way to abuse a ATX power supply for that use?
