扩展和远程机架连接有什么不同?它们之间主要的区别就是连接距离。安装有CPU的机架同要连接的机架之间距离是多远呢?如果从CPU机架算起连接距离在50英尺(15 米)或更短距离之内的,使用扩展底板。使用扩展方式连接是性能更好
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