If a PSU can do 100-240 then the amps are directly related to the v. So at 100V the psu will do 13.5A, at 200V it will do 1/2 of 13.5 so 6.75A and at 240V it will do 6A. As far as I know all psu sold in the US will come with only 1 AC plug - that is the standard 110V US plug otherwise known as a NEMA 5-15 with a C13 connector on the psu side. As for plugging them into 240V it depends on what your receptable is at the 240V location. You would then need to get a cable that plugs into that type of outlet with a C13 connector to go into the psu. There are several options for plugs/recepticles over 110V so its just a personal preference more than anything else. I personally like the NEMA 6-15 type - very similar to a 5-15 but its 240V/15A looks like a normal US plug but the two vertical pins are horizontal - so if by chance someone happens to see your 6-15 plug and want to plug a 5-15 into it then it wont fit and they wont fry whatever device they wanted to plug into it. Also generally speaking all psu's are more efficient at a higher voltage.
Thanks. Yeah I actually talked to EVGA an hour ago & while they don't sell 240 plugs I've got the 5-15 to C13 plugs for a few $ before
I was really surprised that EVGA was not only open, but was in the US & very helpful. I ordered 4x 1000 G2s
One last thing though. Last week I ordered 8 of these:
http://www.ebay.com/itm/18AWG-PCI-E-Graphics-Card-Modular-Power-Cable8pin-to-Dual-8pin-for-Antec-Series-/282559588497 for my 1st rig. The idea was to not use additional 6/8 pin splitters, basically to split the 4 VGA cables just like the 2 that already came split with the PSU..
I was about to order another 16 of these cables(haven't got the others yet) & saw they said "Compatible for antec module power (NP series, TP series, ECO series), Other Brands and Models PSU not Support !". Do you think that matters? Normally I wouldn't worry except that a few weeks ago I got a few 8 pin extension cables from Fry's that didn't fit, like the pins(square & rounded) didn't match up, so I took them back..
I'd hate to order 16 of these & then they not work. I don't get why some fit & other's don't. I'd simply compare the picture with one of my VGA cables but I'd have to stop mining to unplug one
If I have to I could make my own cables like this:
https://www.moddiy.com/products/EVGA-PSU-SuperNOVA-VGA-Modular-Connector-(8%252dPin).html but this is literally the last piece of the puzzle so I'd like to just get this over with( 2 days & $15k later.. I'm tired)