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Riser Card Tutorial
September 6th, 2008

What are the different types of riser cards/bus extender?

Straight-thru bus extenders are used to increase the height of your expansion slot as well as product development and debugging. They are also widely used by production testing of motherboards and I/O boards. Some are utilized as wearout units for the connector or gold fingers in test fixtures.

64-bit-straight-extender

Straight Bus Extender

Right Angle Extenders/Risers are most popular in 1U and 2U rackmount chassis systems or low profile embedded applications that require full height peripheral cards.

32-bit right angle riser card

32-bit right angle riser card

Flexible bus extenders can be used to relocate bus expansion slots to another location. Flexible extenders in custom enclosures that have non-standard mounting locations where a standard riser would not work.

64-bit flexible extender

64-bit flexible extender

Multiple slot Right Angle Extenders/Risers are most popular in 2U rackmount chassis systems and low profile embedded applications that require full height peripheral cards. They are available with 2 or 3 slots, with bus support for PCI, PCI-X, AGP (Pro), PCI Express, and ISA expansion. For customers with only 1 PCI expansion slot available on their motherboard, active riser cards are available to expand this one slot to three slots.

3-slot PCI-X riser card

3-slot PCI-X riser card

Bus Isolation Extenders are innovative tools for developing and testing of PC add-on boards. They allow the board under test to be added and removed from the system bus, without having to power down the entire system. They offer tremendous A-Side Right Placements time and labor savings during product development and production testing.

PCI ExpressX16 Bus Isolation Extender

PCI ExpressX16 Bus Isolation Extender

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