Riser card
A riser card is a printed circuit board that gives a computer motherboard the option for additional expansion cards to be added to the computer.[1]
Usage
A riser is usually connected to the mainboard's slot through an edge connector, though some, such as NLX and Next Unit of Computing Extreme, instead are plugged into an edge connector on the mainboard itself. In general, the main purpose is to change the orientation of the expansion cards such that they fit a limited space within casing. [2]
Riser cables
Riser cables are an evolution of riser cards utilizing improved specifications (specifically the use of PCI Express) and better materials, which allows further distances of data transmission and greater orientation flexibility than traditional riser cards. These cables use a Riser Card PCB and an edge connector on each side of the cable, with a copper alloy surrounded by a plastic insulator that allows for the further data transmission distances.[3]
Such cables are now commonly used in modern household gaming
Specifications
There are only a few specified standards in regards to riser designs. Most use PCI Express edge connectors for data transfer. This allows for maximum data transfer speeds of 32 GB/s when using PCIe 4.0, along with 75W of power to be delivered from the host device.[4] Other specifications used for these cards include ExpressCard and PCI-X.[5]
Applications
Riser cards have applications in both industrial and consumer spaces.[2]
Industrial
In servers, height for
Consumer
In small-form-factor (SFF) computers built by computer enthusiasts,
See also
- Daughterboard
References
- ^ "What is a riser card?". www.computerhope.com. 2018-11-13. Retrieved 2021-02-18.
- ^ a b c d "Riser Cards". www.arrow.com. Retrieved 2021-02-21.
- ^ "Inwin PCI-E Riser Cable Specifications". www.in-win.com. Retrieved 2021-02-21.
- ^ a b "Information About PCIe® Riser Cable and Extender Compatibility with PCIe® Gen 4.0 Desktop Systems". www.amd.com. Retrieved 2020-02-21.
- ^ "Riser and Daughter Card Implementations". www.globalspec.com. Retrieved 2021-02-21.
External links