You can find more information here:
http://www.hardkernel.com/main/products/prdt_info.php?g_code=G143703355573
http://www.hardkernel.com/main/products/prdt_info.php?g_code=G143729448865
You can find more information here:
http://www.hardkernel.com/main/products/prdt_info.php?g_code=G143703355573
http://www.hardkernel.com/main/products/prdt_info.php?g_code=G143729448865
More info here:
https://www.youtube.com/embed/LlxYBIVBRgk
and here:
http://com.odroid.com/sigong/blog/blog_list.php