without any real extra effort on their part, without any real effort to OSHW it, nothing. i guess their business model (most low end brand chinese i guess) is... they build a product that caught their eye, produce and distribute it and dissapear, and then go to the next product that caught their eye and do again, hell with customers let them figure out themselves. the poorest model i can imagine as far as professionalism is concerned. what keep them going is that, nobody can beat their price and probably sales of only few percent from what they produced already give them some profit for their next project, thats their "magic". if you ebay, there still some d3x25 unit available. so you see, they dont really give a damn about these unsold products, they already on the "next phase" of their development.