best psu

[alex-x]

what is the best psu for a 49 port hub

[alex-x]

sorry an add on

what would be the cheapest psu for the 49 port

and what would be the best quality one

if i were to run only half the amount of usbs which psu could i buy that would be  more cost effectivce as not using so much power

please could you show me some links
and pictures of where to buy from

thank you