Passive backplanes are known for their wide range of expanion slots and for easy maintenance. When you buy a PC chassis with a backplane, you need a matching PICMG, PISA, or ISA single-board computer (CPU card). You can find single-board computers in the "Industrial Computers" section of this website.
We can often upgrade your backplane to meet your need for more expansion slots, though not all seemingly similar backplanes fit the same chassis. Please talk to our application engineers about your upgrade requirements.