Saw this power brick on Amazon.. It might actually max out the power needs for the Gekko Hub as it puts out 10A vs the 7A the 419 brick has.. Until I found that I thought I was going to have to put the full power supply package and then just plug in more hubs as I got them to make sure I could run 6 of the NewPacs on the Hub.. Also saw a couple interesting fan options probably overkill for the hubs to keep them cool but better be safe then sorry.. I would think even if one fan failed it would keep them from overheating..

Power Brick: https://www.amazon.com/dp/B00Z9X4GLW

Dual 120mm Fans with 3 speed settings: https://www.amazon.com/dp/B00JLV4BWC

Im going to probably buy my first newpac this week and hopefully get it up and running and then get the hub and such to expand soon.