I'm currently running a rig with seven block erupters in a 10 connector powered USB hub. After taking the USB fan into account, I have an additional two USB ports available. The host is an old laptop.
I've just purchased a Butterfly Labs 30 Ghash/s unit. What is the best way to combine this into my rig?
Can I plug it into the USB port, even though the Butterfly Labs 30 Ghash/s unit is self-powered? Otherwise, should I connect the Butterfly Lab unit directly to a USB port on the laptop? Will there be any difference?
I'm mining with CGMiner.