This may just be my preference, but I would not power the Lancelot units from the same PSU that is running your computer, except possibly just to run 1 or 2 of the Lancelots (and assuming you have enough unused wattage from your current PSU.)  If you do have enough available unused watts, then you can use the splitter from Newegg he cited to split the power from your current PSU to power one Lancelot.

If you are using an extra PSU, then the spitter he cites will power 2 of the lancelots.  I suppose you could get crazy with the splitters and buy a bunch and keep splitting them to power a bunch of lancelots, but this is not ideal due to daisy chaining a lot of plugged in connectors, and risking that somehwhere in the chain, you get a bad connection, which would affect everything downstream.

I'm not 100% sure, but the brass standoffs do not seem to come with the Lancelots, hence the idea of making a frame came to me.

http://www.cardreaderfactory.com/shop/bitcoin.html

A generic brick with the right specs should power these.  They sell 12v 10amp bricks on thier site and state that 1 brick powers 4 devices.  They don't state if the brick has 4 output plugs though.  If you view thier ATX splitter page, they give a bunch of options for buying wires with plugs.  I am sure that getting the plugs is not an issue, you simply need the correct size (5.5/2.5mm power plug), and I am assuming that we will need to wire them ourselves.  This is pretty easy soldering. Just get the polarity correct!

So, you buy any bricks with the right specs (input volts 120 for N. America, and 220 for Europe), probably have to cut off the existing 12v output plug, and solder on 4 of the correctly sized plugs in parallel to power 4 of the Lancelots.

Alternatively, you can use a computer ATX power supply (at 600 or more watts), but then you need to figure out how to adapt it to power up to 20 lancelots.  This is where their ATX adapter breakout board comes in handy, which is why some of us asked for this.  Their breakout board is a bit unusual in that it has 20 of the 12V outputs.  You buy 20 of their wires + plugs and simply screw the bare wire ends into the green terminals.  You then plug a 600 watt ATX power supply (personally, would use a 700 watt) and you can plug 20 lancelots into it.  You can plug less in (say like 10 lancelots) if you prefer, so then you need only 300 watts (or preferably 350 watts).


As another option, we make our own, or find an off-the-shelf ATX breakout board.  Possibly this might work http://www.robotshop.com/cytron-atx-power-supply-breakout-board-right-angle-2.html though it does not have 20 of the 12V outputs.

I am not sure what the 5 (or 6?) caps on the cardreaderfactory ATX breakout board are for.  If anyone knows, please let me know.  Possibly they are just to help smooth out the 12V output.  If that's the case, then it would be easy to add some caps to a generic breakout board.

The above options assume you don't mind doing a little soldering.  THis is easy soldering, not like trying to solder SMT components or anything tricky.

Guys, these cards don't require anything special to power them.  They take 30 watts (according to blackarrow) each.  He posted in another thread that a 600watt atx can power 20 units.  
http://www.newegg.com/Power-Supplies/SubCategory/ID-58?nm_mc=EMCPB-052013&cm_mmc=EMCPB-052013-_-PB050413-_-index-_-txt

Personally, I would get a slightly larger power supply.  If they don't have the ATX power splitter boards in stock at the time of our order, we can look into making them ourselves.  I started searching by googleing "ATX breakout board" (but without quotes)

The cards appear to have a 2 conductor DC jack on them, so you just have to find the appropriate size plug.  Blackarrow also says the cards have a molex type D connector.

So, one of the 12v 10a bricks they sell on their site can power about 4 cards.  You can probably get a generic brick off of Amazon or Newegg.  Backarrow says that the shipping for the bricks is more than they are worth.

Also, I would like to gauge interest in the following idea:  I am buying a quantity of Lancelots and I want to stack them.  I am going to create a open frame that mounts the lancelot, and the cooling fans.  It will be an extruded aluminum frame, probably with 3D printed brackets.  Anyone interested in buying kits of these from me?  I don't have a price yet, as I have to price out the parts.  It won't be a lot though.  Probably a lot less than $70, but that's very tentative.  I would only ship to USA as well.

I will let the OP answer the question about getting in.

I neglected to mention that the power supplies are going to be separate from the Lancelots.  The OP told me he will look into adding them to our orders, but he does not want to delay the shipping of the lancelots themselves due to the power supplies.  I think his reasoning is sound, as the power supplies are much easier to get than the lancelots, so, we can get them anywhere if we have to.  Or, we still have the option of getting them from CardReaderFactory

The OP has edited the first post.  We are over the min required qty now.

You have a couple of options for power supplies.

Either a brick like the ones the manufacturer sells, or you get their ATX adapter (or build one yourself).

http://www.cardreaderfactory.com/shop/bitcoin.html

I am hopefully on the list as one of the anonymous users.  Watching this thread now

Can FPGA machines mine other cryptocurrencies (besides Bitcoin) ?

Tundra Boots

Foods that start with S

Thanks, I will do that.

I am working on buying dedicated mining rigs as we speak.  Mining with my laptop part time at 100 Mh/s is not going to cut it!

Hey, thanks for letting me know.  I will try other pools and other coins.

Also, I found out about bitcoins pretty late in the game.  Last year, I also found out about 3D printers kind of late.  I deceided I wanted into the 3D printer game.  Now I am manufacturing and selling them--i'm a mech engineer.

Is there any other new tech on the horizon that I should take a look at as well?

Things related to making money directly like bitcoin?

I'm new to Bitcoin but not to trading.

the bitcoin charts look like 99% of the previous bubble charts in all manner of commodities (actually, futures contracts) and stock markets.  The recent bubble is an old repeating record to my eyes.

Currently bitcoin is in a short term down trend (bear market)

I am new to bitcoin as I finally decided to look into it last week.

I don't have a dedicated mining rig, though I am considering getting a setup of some kind.  I saw the stuff going on with ASICs right now.  Pretty difficult to decide if I want to buy an ASICs rig or not.

At any rate, I am currently using my laptop, which has a Radon HD 7850.  Its generating about 107 to 111 Mhash/s on average, but I can't let it run 24/7 so I haven't made anything to speak of.  I joined Slush's pool as it seemed a safe bet for a beginner.