I have purchased two Cubox-i4pro systems. After loading Ubuntu Linux on them I found them to be very powerful embedded systems. The quad core ARM processors provided ample compute horsepower. I installed the ‘R’ programming language on them and was downloading stock market data and analyzing the data.
I wanted to start selling them on my website, but unfortunately they were not able to respond to my requests. They seem to have production issues since I had to wait over a month to get the two boxes I ordered. They did keep me informed via email as to when the boxes would be delivered.
The boxes were of a very high quality. I would recommend them to anyone. I could not use them because I needed a reliable source for quantity purchasing.
One item of note, I was never able to get the wireless 802.11 to function properly with Ubuntu. Your mileage may vary.