Portwell
PBPE-12AA64
PBPE-12AA64 4U Backplane w/ 2x SATA II, 4x USB 2.0, 1x PCI-E x16, 2x PCI Slot, 8x PCI-X
Fit for 4U chassis
Four USB ports
Dual SATA ports
Two PCI-X buses support eight PCI-X expansion slot
For ROBO-8912VG2AR single board computer