Any USB/Ethernet controller suggestions?

[john swift]

from the UC300 manual
"We recommend to use a power supply with at least 500mAmps"

so you can use any regulated 5V power supply that can supply a half amp or more is OK

the current taken is not going to be any higher if you used a 5V 100A power supply

John

do not use a 5V phone charger they are not all regulated to give you exactly 5V DC !!!

[A_Camera]

do not use a 5V phone charger they are not all regulated to give you exactly 5V DC !!!

I think that's not the case any more. All phone chargers use regulated power today, but maybe not all gives 5V. Anyway, original Nokia, Samsung, Sony... all safe to use, but I'd be careful with the cheap eBay chargers.