If you mean the "block erupter 49 port hub", you don't need to go that far unless you plan to power A LOT of sticks.
You can use powered usb hubs as long as you stay within tolerance, eg: this hub will comfortably power 7 sticks @ .5a each as it has a 4amp psu -->
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182208What you want to stay away from is USB3.0 hubs (some incompatibility/power issues) and running your mining software on winxp (usb com port issues)