The PCITX3N1 is a A-Side 3-slot PCI right angle riser designed for a 2U rackmount chassis. The overall dimension of the main board assembly is 2.75"H x 7.10"W.
The middle slot is connected directly to the gold fingers. Majority of the bus signals of the top slot is connected to the middle slot. However, there are some dedicated signals that are needed for the top slot, and they are borrowed from a narrow cable that is plugged into a nearby motherboard slot. The bottom slot is a completely independent connection, coming from a wide cable that connects to yet another PCI slot on the motherboard. This arrangement allows the bottom slot to work off a PCI slot on the Motherboard that is not common to the PCI slot where the riser is plugged in.
The user can order the riser with a three PCI-32 bit slots or up to a three 64 bit slots. The VIO voltage of each slot on the riser are selectable. All connectors are mounted on the B side of the riser card. The top PCI slot is located at 2.515", the center PCI slot is located at 1.715", and the bottom PCI slot is located at 0.915" from the bottom of the board.
The wide cable and the narrow cable can be ordered in various lengths.
A power option (-W) is available to provide more 12V, 5V and 3.3V to the connectors on the riser. It accepts the power from a 4 pin PC power connector for the floppy drive.
32-bit 2U riser card with 3x 5V 32-bit PCI slots, 2" wide cable and 3" narrow cable
64-bit 2U riser card with 3x 3.3V 64-bit PCI slots, 2" wide cable and 3" narrow cable
