![]() However, the small size of SFF cases may limit expansion options many commercial offerings provide only one 8.9 cm (3.5") drive bay and one or two 13.3 cm (5.25") external bays. Most accept standard x86 microprocessors, standard DIMM memory modules, standard 8.9 cm (3.5") hard disks, and standard 13.3 cm (5.25") optical drives. Small form factor computers are generally designed to support the same features as modern desktop computers, but in a smaller space. The term SFF is used in contrast with terms for larger systems such as "mini-towers" and "desktops." Features SFF originally referred to systems smaller than the Micro-ATX. The meaning of SFF evolved to include other, similar PC designs from brands such as AOpen and First International Computer, with the word "Small" replacing the word "Shuttle". The acronym SFF originally stood for " Shuttle Form Factor," describing shoebox-sized personal computers with two expansion slots. Motherboard form factor comparison (pen for scale) History According to marketing strategy, one manufacturer may decide to mark their product as "small form factor" while other manufacturers are using different marketing name (such as "Minitower", "Microtower" or "Desktop") for personal computers of similar or even smaller footprint. Manufacturers often provide definitions that serve the interests of their products. However, "small form factor" lacks a normative definition and is consequently open to interpretation and misuse. Small form factors do not include computing devices that have traditionally been small, such as embedded or mobile systems. Advancements in component technology together with reductions in size means a powerful computer is no longer restricted to the huge towers of old. Manufacturers also emphasize the aesthetic and ergonomic design of SFFs since users are more likely to place them on top of a desk or carry them around. Their smaller and often lighter construction has made them popular as home theater PCs and as gaming computers for attending LAN parties. SFFs are available in a variety of sizes and shapes, including shoeboxes, cubes, and book-sized PCs. ![]() Small form factor ( abbreviated: SFF or SFX ) is a term used for desktop computers and for some of its components, gabinet and motherboard, to indicate that they are designed in accordance with one of several standardized computer form factors intended to minimize the volume and footprint of a desktop computer compared to the standard ATX form factor (industrial designer pattern).įor comparison purposes, the size of an SFF case is usually measured in litres. For small form factors in storage and networking adapters, and other components, see Small form factor.
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