The media speed is useful if you need to verify the setting based on the link partner and network that the adapter is connected to, as a speed or duplex mismatch can cause problems.

如果需要根据适配器连接的链路伙伴或网络检查设置，介质速度是有用的，因为速度或双工不匹配会造成问题。

youdao

This kind of communication mode employs three-wire connection and full duplex synchronous data transmission. It has the features of less link, fast speed, high reliability and etc.

这种通信方式采用三线连接，全双工同步数据传输，具有连线少、速度快、可靠性高等特点。

youdao