- Rack mountable — A system that can be mounted in a rack or as a stand-alone
- Rack-Optimized — A system that has to be run in a server cabinet
- Tower/stand-alone — A system optimized for stand-alone installation only
- Blade — A discrete CPU card that slides vertically into a shared chassis. Typically several blade cards are housed in a cabinet or a stand-alone chassis, which houses a common power supply, cooling element, and network switches and connections.
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