A couple of people have mentioned that they were looking for a cheap network switch to use with a few E1.31 devices such as the PIXAD8 and the E16. Since they are often used with 5V pixels, using a network switch that also ran from 5V could remove the need for a separate power supply. I found an ASUS one that runs from 5V. It's model number GX1008B. One retailer for it is Computer Alliance here in Brisbane, but I'm sure you could buy them locally or from another online seller too. Anyway, I hope that helps someone.