The Ventana Family of Single Board Computers has been a very popular offering with the HDMI HD video input and HDMI output, the CAN Bus port and high performance i.MX6 processor along with many more great features. To provide the widest range of options, variations of each family member was created to make ordering more simple. These variations along with their part numbers are listed on our Ventana ordering options Wiki page:http://trac.gateworks.com/wiki/ventana/orderoptions