As for the MXM interface, this is the patent of NV Lao Huang Jia. When it was launched in the early years, it was never over-developed-the low-end machine can't afford one more patent fee and one more interface component fee, and the users of high-end machines have no opinions on the overall replacement of notebooks, which is unnecessary. Moreover, Intel and AMD don't want to have a NV on their notebook platforms to collect patent fees, which is to limit its development by giving and giving. NV itself actually hopes that the notebook can be upgraded rather than upgraded, so it has not pushed this technology hard, that is, aliens, quasi-systems, etc. Use this interface more. In recent years, even aliens have gradually given up doing this, only retaining a few high-end configurations-and there is basically no MXM notebook graphics card market, which is basically a dead market.