1xPICMG, 1xPCI-Express x16 (x8 signal), 3xPCI-Express x4, 3xPCI Slots PICMG 1.3 Passive Backplane
1xPICMG, 1xPCI-Express x16, 3xPCI-Express x1, 3xPCI Slots PICMG 1.3 Passive Backplane, 12V max