It isn't as easy as simply plugging them into the computer and clicking start.
These things are little vampires and suck down electricity.
The volts generally are not the problem it is the amperage supplied to each miner that can cause you to have a bad day.
I remember from my physics class in college -- 'twinkle twinkle little star power equals I squared R'
After doing some basic math I remembered that it is easier to google the answer.
I found a couple of interesting links.
https://bitcointalk.org/index.php?topic=253749.0
This link lists a bunch of USB hubs that can keep up with the current needed to properly run each miner.
This was a great find! Unfortunately for me I found this after I bough a handful of hubs from the slowboat on ebay. The hubs I purchased only produce 400mA @ 5v.
So now I am looking for wallworts that I can plug into these substandard hubs
I figured out that the plug has the specific dimensions of 5.5mm OD and 2.5mm ID.
I did some basic googling and the best deal I could find was on ebay for just under seven clams.
http://www.ebay.com/itm/190872018045?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
These walworts are 4A @ 5v. should have plenty of juice to spare which will allow me to also plug in the USB fans I also slowboated in.
The new power should get here in the next few days. So until then I will limp along only running 5 out of 20 block eruptors.
If you are starting from scratch there is a company called MCM that sells what I am making for about $18 each.
http://www.mcmelectronics.com/product/83-11765?green=CE40BB6F-82B6-55DD-A4E0-9D06369BF8C7
If you order over 50 bucks they have free shipping.
If I was starting over I would simply order from MCM so I was starting with exactly what I needed for the least amount of money.
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