https://blog.wongcw.com/2018/12/18/%e8%8f%af%e7%82%ba%ef%bc%9a50g-pam4%e6%8a%80%e8%a1%93%e5%b7%b2%e7%b6%93%e6%88%90%e7%86%9f%e8%8f%af%e7%82%ba%e7%8d%b2%e5%be%97%e5%8d%81%e9%a4%98%e5%80%8b%e5%95%86%e7%94%a8%e5%90%88%e5%90%8c/
華為:50G PAM4技術已經成熟華為獲得十餘個商用合同