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Open Systems Adapter
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The Open Systems Adapter (OSA) is a network controller for IBM z/Architecture, ES/9000 and S/390 mainframes. The OSA can be installed in a mainframe I/O cage. The OSA supports Ethernet, Token Ring and FDDI connectivity. The maximum data rate is 10 Gbps.[1][2][3]
 | This article provides insufficient context for those unfamiliar with the subject. (October 2009) |
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