HolidayCoro used to sell the PixLite brand. David (HolidayCoro) started his own line, which is basically the PixLite with horrible features and firmware.
While the PixLite 4 is only 4 outputs, it can do a crap ton of pixels, I believe 680 per output.
They both offer 3 year warranty. Advatek offers free shipping. Even though Advatek is Australia, the boards ship from a warehouse in the states.