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Can someone please recommend a power supply unit (PSU) that I can use to power a single Block Erupter Cube?

Would this one work?
http://www.amazon.com/Corsair-Builder-Series-Watt-CX500/dp/B0092ML0MY/ref=sr_1_1 (http://www.amazon.com/Corsair-Builder-Series-Watt-CX500/dp/B0092ML0MY/ref=sr_1_1?ie=UTF8&qid=1387232455&sr=8-1&tag=freeplefav-20&keywords=CX500+500W)

It is well over the 280W requirement and it has 2x 6-pin PCI Express power connectors.  I was going to get a Rosewill off of Newegg to save some money but with this needing to run 24/7, I thought I'd go with a better brand.  There's also a Corsair CX500M (http://www.amazon.com/Corsair-Series-Modular-Bronze-CX500M/dp/B00ALK3HF4/ref=sr_1_1?ie=UTF8&qid=1387232744&sr=8-1&keywords=CX500M+500W) version that I was considering but didn't think was necessary.  Any help would be appreciated.

The Corsair is a good power supply, especially when it is on sale  ;) 

The cube draws 200-280W depending on the clocking.  The spec says it has 2 PCI-e connectors, which is what you need.  And the 12V rail supplies 40A (480W), which is more than enough.

I've been running 24/7 with no problems using an XFX Pro 550W.

I see, so I should multiply the 12V by the amperage to get the total output on that line.  Thank you for this.  I wasn't understanding the concept of the rails and thought that a 550W PSU would be able to supply 550W to the Block Erupter Cube.  So at least, to support the overclocking, I would want 12V x 24A (288W), but that's cutting it close so I'd go higher.

It depends on how the power supply is wired internally as to how much power is available for each output voltage.  The power supply rating is the maximum power you can draw when you add up all of the power being used.  So if you are drawing 100W on the +5V output, then you only have 400W available for the +12V output.

But the specs for the power supply you mentioned explicitly state that the +12V output can draw up to 40A, so there is plenty of power for a single cube (you are not using any of the other output voltages).  When running 24/7, I think you can safely go to 80% of the rated power output without any problems, which would be 384W in your case.

I went with a 500W rosewill from newegg. Runs fine on Low clock. Shuts down within 2 min on High. >:(

Good move on skipping it.

You guys might want to also consider going with a "80 plus gold" model.  Anything less efficient is just money spent going to the power utility company.  Since you will have these running 24 hours you really want an efficient PS. 

More info here:
http://en.wikipedia.org/wiki/80_Plus

Thank you for the comment Singlebyte.  But boy those 80 plus gold models are expensive!  The cheapest I could find is a Rosewill and I'm not comfortable getting this:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182071

This Corsair, the brand that seems to be most recommended is currently $130:

http://www.amazon.com/Corsair-Professional-Series-Modular-HX750/dp/B0090I9VZI/ref=sr_1_2 (http://www.amazon.com/Corsair-Professional-Series-Modular-HX750/dp/B0090I9VZI/ref=sr_1_2?ie=UTF8&qid=1387315813&sr=8-2&tag=freeplefav-20&keywords=80+plus+gold)

I am hoping to spot a holiday sale somewhere.

They are pricey, but you come out ahead very quickly when running 24 hours.  Just make sure you find a well known brand you trust because the "plus 80" certification is voluntary by manufacturers and I am sure there a shady people out there falsely marking their power supplies.  Good Luck in your search!

I sold it.


http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=151185510653&ssPageName=STRK:MESE:IT



what would you pay me for this.  I got it for free I would want under 90 usd and that (90) would be a good deal..    it truly would be a no brainer  to run 2 of the blades.


You could pay paypal or btc and I would mail it to any of the 48 continental states.  pm me if you want to buy it.  

 you would pay under the price of the rosewill!

I have more then 12 psu's in my home.  make a fair offer and it is yours.

I am a good seller

http://www.ebay.com/usr/philipma1957

http://feedback.ebay.com/ws/eBayISAPI.dll?ViewFeedback2&userid=philipma1957&ftab=AllFeedback&myworld=true&rt=nc&_trksid=p2050430.m2531.l4585

and you can pay a great price.
with paypal or btc.  skipping an ebay relisting