2U 2*64bit/3.3V PCI-X +1*32bit/5V PCI riser card w/custom length ribbon cable.
For motherboard w/2*PCI-64bit/3.3V on motherboard slot-5 and slot-6 and 1*PCI-32 on nearby slot.
The PCIX-64 goldfingers linked with the middle PCIX-64 riser connector(main), an independent PCIX-64 bus, sit into the motherboard slot-6(PCIX-64)which is lined up with chassis' horizontal 3-cutouts in the rear panel.
The top riser PCIX-64 connector(share) linked w/a 8-wires paddle link is connected to the motherboard slot-5(PCIX-64).
The bottom riser PCI-32 connector linked with wide flex cable, another independent PCI-32 bus, is connected to motherboard slot-4(C5), slot-3 (C7), slot-2(C9) or slot-1(C11) PCI-32 bus.
For Supermicro P4SC8/P4SCi (C5), X5DPA-G/GG (C9), MSI MS-9156/9149 (C5), Tyan S5112/S5350/S2735(C7),S2723, S2725 (C9).