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In computing, an expansion card (also called an expansion board, adapter card, peripheral card or accessory card) is a printed circuit board that can be inserted into an electrical connector, or expansion slot (also referred to as a bus slot) on a computer's motherboard (see also backplane) to add functionality to a computer system.
In servers, height for expansion cards is limited by rack units. A unit (U) is the traditional measurement used for server height. One server unit is equal to 1.75", 2U servers are 3.5", and so forth. Traditional 1U riser cards each fit 1 PCI slot, and 2U riser cards can fit 2 or 3 PCI slots, depending on whether they obstruct access to any PCI ...
CPU card. A CPU card is a printed circuit board (PCB) that contains the central processing unit (CPU) of a computer. CPU cards are specified by CPU clock frequency and bus type as well as other features and applications built into the card. CPU cards include Peripheral Component Interconnect (PCI) cards, modular PC Cards, Industry Standard ...
Peripheral Component Interconnect ( PCI) [ 3] is a local computer bus for attaching hardware devices in a computer and is part of the PCI Local Bus standard. The PCI bus supports the functions found on a processor bus but in a standardized format that is independent of any given processor 's native bus. Devices connected to the PCI bus appear ...
PCI-X, short for Peripheral Component Interconnect eXtended, is a computer bus and expansion card standard that enhances the 32-bit PCI local bus for higher bandwidth demanded mostly by servers and workstations. It uses a modified protocol to support higher clock speeds (up to 133 MHz), but is otherwise similar in electrical implementation.
PCI Express x16. PCI Express x1. PCI Express x16. Conventional PCI (32-bit, 5 V) PCI Express ( Peripheral Component Interconnect Express ), officially abbreviated as PCIe or PCI-e, [ 1] is a high-speed serial computer expansion bus standard, designed to replace the older PCI, PCI-X and AGP bus standards.
A graphics card (also called a video card, display card, graphics accelerator, graphics adapter, VGA card/VGA, video adapter, display adapter, or colloquially GPU) is a computer expansion card that generates a feed of graphics output to a display device such as a monitor. Graphics cards are sometimes called discrete or dedicated graphics cards ...
PCI Mezzanine Card. A PCI Mezzanine Card or PMC is a printed circuit board assembly manufactured to the IEEE P1386.1 [ 1] standard. This standard combines the electrical characteristics of the PCI bus with the mechanical dimensions of the Common Mezzanine Card or CMC format (IEEE 1386 standard). [ 2]
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