Industrial Chassis and Card Cages

Industrial chassis and card cages are metal frames that support and contain electronic components and power supplies. They usually include a backplane with slots for installing expansion boards, a power supply, cooling fans, and connectors. There are two main types of industrial backplanes: active and passive. Active backplanes contain bus control and motherboard circuitry; however, they do not contain processor complex components such as the central processing unit (CPU), chipset, or cache. Passive backplanes contain circuitry for bus connectors and, in some cases, buses and drivers. Both active and passive industrial backplanes may also include bridges. For additional slots, an expansion chassis can be used. 

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