Expansion card: Difference between revisions

Daughterboards are sometimes used in computers in order to allow for expansion cards to fit parallel to the motherboard, usually to maintain a small [[Computer form factor|form factor]]. This form are also called [[riser card]]s, or risers. Daughterboards are also sometimes used to expand the basic functionality of an electronic device, such as when a certain model has features added to it and is released as a new or separate model. Rather than redesigning the first model completely, a daughterboard may be added to a special connector on the main board. These usually fit on top of and parallel to the board, separated by [[Spacers and standoffs|spacers or standoffs]], and are sometimes called '''mezzanine cards''' due to being stacked like the [[mezzanine (architecture)|mezzanine]] of a [[theatre]]. [[Table-lookup synthesis|Wavetable]] cards ([[sample-based synthesis]] cards) are often [[wikt:mount|mounted]] on [[sound card]]s in this manner.

 

Some mezzanine card interface standards include

the 400 pin [[FPGA Mezzanine Card]] (FMC);