i can barley get 3 ants and 4 yellowjackets running  on it ants @ 2 and YJs @ 2.5   if I try and erupters in with them I get power issues...  any help on what to replace the PSU with and best way to do it?

ok so I found this
http://www.ebay.com/itm/S-120-12a-Super-Stable-Power-supply-unit-120W-DC-12V-10-5-13-8V-10AMP-/221376640397?pt=LH_DefaultDomain_0&hash=item338b13758d
 can I cut the cord on the psu from
http://www.ebay.com/itm/261376179469
and wire it to the new psu and get 10 amps at 12v to power a 20 port hub?   or did I miss something?
 Trying to do my own research and not ask to be spoon fed but I would hate to make an ignorant mistake that costs me moneyor mining time

ok thank you.  the current plug says it outputs 20v @ 4.5 amp   I was looking to decrease the volt and increase the amp and decrease the volts for a ?quess? is %30 more total power? 
should I think about feeding it 5v?

But it dosnt work well enough!!!!!   isn't that the other reason we all mine?!!  we like to tinker and tweak!  it will only supply enough power for like 9 MAX usbs  and that is with very mild over clocks on the ants and yellowjackets   I would like to be able to use like 4 or 5 more ports!!!
In someones more educated opinin what is the best/ safest way to get this hub more power?  I can purchase a psu or refit an old atx psu   not certain the best way to go about doing either of those thou!

not a wattage issue  its an amp issue    it was my understanding that ( and this is simplified) volts are lets say the size of the pipe and amps are the pressure in the pipe and the watts are akin to the flow rate...  so I need the same flow but in smaller pipes with more pressure...  with the overclocks  I don't feel 600-700mlamps is overkill.. im overclocking the yellowjackets up to 2.5/2.6 and the ants to 2/2.2    so they are using more than the standard usb draw,  or they want more anyways...   dose that make any sort of sence?.....
   good lord I hope I didn't just prove that im an ignorant jackass....
   but thanks for all of the help!!!!

so I just have a shitty power supply with it?  im going to try to post a pic of its ratings and such  all the info found on the brick


btw   tyvm mud  I appreciate the help



EDIT   ok  I hope this link works to share the pics of the psu and set up in question   
https://plus.google.com/110534873202442008219/posts/WSmL6bEFpwU

thanks for your time again

https://plus.google.com/110534873202442008219/posts/WSmL6bEFpwU
 the link
 and the psu is med warm to the touch  not hot but warm in a cool place

Amazon has their own custom built 7 port usb 2.0 hubs with 5v/4a adapter for $19 shipped (prime). Ordered 7 for an antminer project, i'll report back how they work out.

http://www.amazon.com/gp/product/B00DQFGJR4/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER

A follow-up :

I've been using those Amazon ones for testing of the dual-chip design and I am very impressed by them - I've plugged them into USB3 ports and 3 miners are happily hashing there when pushed to the limit.


And a very disappointing observations from this one: http://www.newegg.com/Product/Product.aspx?Item=N82E16817111981
(and there are a lot of similar ones with 2.5A power brick)
The power brick is a piece of junk and as soon as you add some load to the hub (let's say 1-1.5A) the voltage drops to 4.6-4.7V and if you push it even harder it goes even below 4V.
This was a nasty surprise for my desktop which in essence ended up having to provide all the power as that power brick's voltage was well below the PC's 5V.