Hub for pi and block eruptors Help

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Hi I have been reading a few threads but cant work out which is the best hub to buy? Does anyone have a link to one on ebay please? I have 12 block eruptors so would like to use at least 10 (might sell 2 depending on what hub I get).

I have a hub with 4 ports and I got 2 block eruptors running last night. I then plugged 10 into my ac power suplied 10 port hub and it kept spitting back errors all night. does this mean I have got the wrong hub?

Also one more question please. Is there a maximum amount of eruptors you can connect to a raspberry pi? How do you do this? Do you just have one hub feeding many all with powerr suplies?

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[ct1aic]

Hi I have been reading a few threads but cant work out which is the best hub to buy? Does anyone have a link to one on ebay please? I have 12 block eruptors so would like to use at least 10 (might sell 2 depending on what hub I get).

I have a hub with 4 ports and I got 2 block eruptors running last night. I then plugged 10 into my ac power suplied 10 port hub and it kept spitting back errors all night. does this mean I have got the wrong hub?

Also one more question please. Is there a maximum amount of eruptors you can connect to a raspberry pi? How do you do this? Do you just have one hub feeding many all with powerr suplies?

Greetings.
I have 12 USB Block Erupters connected to the Raspberry Pi, via 3 HUB's, each with a 5volt/3amp PSU.

Your problem must be with the power supply of your HUB, as each USB Block Erupter requires half ampere. So, 10 USB Block Erupters would need a minimum of 5 amperes! And don't forget the HUB still needs energy for itself and also for the RPI...

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OK thank you! Where can I buy these gismoz on ebay? I am in France. Also which hubs did you use?
Thank you

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sorry Gizmos you mean block eruptors right Sorry but which hubs are they please?

[ct1aic]

Ok, USB Gizmos = USB Block Erupters  

My HUB's: http://www.ebay.co.uk/itm/290900607972 (PSU 5Volts, 2,5Amp) and http://www.ebay.co.uk/itm/230976716952 (PSU 5Volts, 1,0Amp, don't use this PSU)

My PSU's for the HUB's & RPI: Velleman PSS0530 - http://www.velleman.eu/products/view/?country=es&lang=en&id=376248 - 5Volts, 3,0Amp.

[batt01]

I am using a dlink 7 prot hub with my R Pi.
http://www.amazon.com/D-Link-Hi-Speed-7-Port-Powered-DUB-H7/dp/B00008VFAF/ref=sr_1_1?s=electronics&ie=UTF8&qid=1374609181&sr=1-1&keywords=D-Link+7+Port+USB+Hub+DUB-H7%2FB
 I am told that it can run 6 erupters without any problem. I am currently in search of a one that can support 10.  Here is a list of ones that should work. I dont think you can use any 3.0 usb hubs.

http://elinux.org/RPi_VerifiedPeripherals#Powered_USB_Hubs