You need a mini PCIe card -- not the current M.2 format.  There are some cards available with Wifi 6 support in this format, though not from Intel. Make sure whatever you buy has drivers for the OS you're running -- most newer cards are Windows 8.1 and up only. Example here of hardware that will work subject to drivers being available. [URL]  
Hi, My Dell Inspiron N5030 laptop's wifi card is not able to access the fibre speed (500mb) of my Vodafone fibre broadband modem.Is it possible to upgrade the slow Atheros AR9285 802.11b/g/n Wifi adaptor to a wifi card capable of providing this speed.If an upgrade is possible, which card would be the best option? Thanks
Dell Inspiron N5030 wifi card upgrade?