Riser Cards for 1U systems and chassis

For 1U systems a very low profile single-slot riser card is required with a maximum overall height of .90″ (in most cases, this
depends on the motherboard and chassis you are using), such as the PCITX4-5, PCITX4-6, PCITX8-5 and the PCITX8-6 32-bit and 64-bit PCI
riser cards. If you plan on purchasing a riser card for use in a 1U chassis, please contact us so we can confirm that the riser card you are purchasing will fit in a 1U chassis, you can reach us at 1-877-722-1116, email us at sales@orbitmicro.com.

Riser Cards for 2U systems and chassis

For 2U systems a low profile single or multi-slot riser card is required with a maximum overall height of 2.75″ (in most cases, this
depends on the motherboard and chassis you are using). If you plan on purchasing a riser card for use in a 2U chassis, please contact us so we
can confirm that the riser card you are

Riser Card Positions in a Rackmount Chassis

purchasing will fit in a 2U chassis and your motherboard, you can reach us at 1-877-722-1116, email us at sales@orbitmicro.com.

Riser Card Placement Inside a Chassis

Most rackmount chassis require the riser card to be plugged into the motherboard slot that is about 7.2″ away from the right edge if the motherboard or Position 1 shown to the right. Depending on the motherboard this slot could be a 32-bit PCI slot, 64-bit PCI slot, AGP (Pro) slot, or PCI Express.

However if you have a motherboard that is similar to the one shown to the right and you require an AGP slot, for a 2U chassis, you will need a special riser card that is designed to plug into Position 1, but still has goldfingers to grab signals from the AGP slot which is
located at Position 2.

Below are examples of various motherboards with different bus options and their compatible riser cards. Before purchasing a riser card for your 1U or 2U system we recommend you call us before so we can confirm compatibility, you can reach us at 1-877-722-1116,
email us at sales@orbitmicro.com.

Motherboard with PCI and AGP slots	This motherboard features 32-bit PCI slots and an AGP slot. In order to use two 32-bit PCI slots and one AGP slot you need our PAPTX-PCI riser card. This riser card plugs into the 32-bit PCI slot in Position 1 and has goldfingers in the back to get signals from the AGP slot
Motherboard with PCI and PCIe slots	This motherboard features 32-bit PCI slots, an X16 PCIe slot, and X1 slots. In order to use two 32-bit PCI slots and one X16 PCI Express slot you need our EPPRXP riser card. This riser card plugs into the 32-bit PCI slot in Position 1 and has goldfingers in the back to get signals from the X16 PCIe slot.
Motherboard with 32-bitPCI and 64-bit PCI slots	This motherboard features three 32-bit PCI slots and two 64-bit PCI slots. In order to use two 64-bit PCI slots and one 32-bit PCI slot you need our PCITX3N1 riser card. The middle slot is connected directly to the gold fingers which are meant to be plugged into a 64-bit PCI slot, Position 1. 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 a 32-bit PCI slot on the motherboard.