For quite a long time, people have to use PCI card for cnc router controller which is considered stable and fast.
But nowdays, people are used to working with smaller computer that can not work with PCI card or better laptop. Then the cnc router is coming with USB connector.
Now we are talking about the desktop cnc router RS-3636 from Redsail China. Its working with USB, so you only need one software to make a toolpath without needing another software for PCI card and also used for outputting the toolpath. You can only use a USB handle, then everything is solved.
You have to try and you will like it. Mini router just like a small gift which you can buy for your wife to make some smaller job.