Need some quick help

So I have an m.2 WiFi/BT adapter arriving originally for my hackintosh laptop however I don’t need it for that anymore as my dad is now using that laptop with windows.

I am going to use it in my desktop but I’m having trouble finding an antenna with pcie bracket. I seem to only find antennas with the cables but no bracket for the case.

My PC has m.2 which is why. - live in the UK