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CPU cards
Despite some different specifications of these boards, they all have one thing in common - full compliance with PC open architecture. It means full compatibility and possibility to use expansion boards, peripherals and software intended for usual PC. The first two models are aimed at creating computer system on a base of a passive backplane. The passive backplane - based solution is more flexible for servicing and upgrading than using ordinary motherboard of an office PC. In addition to it the passive backplane can withstand shock, vibration and allows to install up to 20 expansion boards.
To choose a CPU card it is necessary to clearly understand the application where it should be used, know the environment, dimensions of the computer system and others. For example, to use an industrial PC as a PC-compatible controller it is often justified to choose half size CPU boards with ISA bus. However, for powerful workstation or server - full size PICMG boards are used. A relatively young PCISA standard is a compromise between the board size and the necessity to have ISA and PCI slots.
The fastest way to choose a product You need - is to use the Filter . It works as follows:
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A computer system is mostly determined by the CPU card. The catalogue includes the following models of CPU boards: 
The CPU boards often have integrated VGA, LAN and SCSI controllers. On the one hand it saves the expansion slots, on the other hand it provides high performance, reliability and software compatibility. That is why some models have its own design with a different combination of integrated controllers.