CBD-Tech say they've built a motherboard for 3D printers which is superior to the open source versions on the market by virtue of amped-up power and their specialized and tested firmware. The Chitu V3.1 retails from between $68.59 and $93.56 for configurations aimed at single and dual extruder printer setups. 3Dfilamenta is the first ovrseas supplire of the Chitu, and CBD-Tech's other products. You can read all about it here: http://3dprint.com/35824/chitu-3d-printer-motherboard/ ‎


Below is a photo of the Chitu: