https://blog.wongcw.com/2021/08/10/x-nand%e6%8a%80%e8%a1%93%e6%9c%89%e6%9c%9b%e7%82%baqlc%e5%bf%ab%e9%96%83%e8%a8%98%e6%86%b6%e9%ab%94%e5%b8%b6%e4%be%86slc%e7%b4%9a%e5%88%a5%e7%9a%84%e6%80%a7%e8%83%bd/