Wifi Card?
Wifi Card?
Looking at the mesh system referenced, similar designs can be found here: https://a.co/d/9l1viDb
That could reduce your speeds significantly, possibly more than 20 feet.
It seems the information comes from an unexpected source. Cat6A supports speeds up to 100 meters at 10 Gb/s, which means it should work well in most typical environments.
Just to clarify and to ensure you understand what was said and don't have unrealistic expectations: Properly certified Cat6A ethernet cable can achieve 10Gbps up to 100m if you have 10Gbps NICs at both ends and there is no failure of cable integrity after you lay it down. It should run fine at 1Gbps if you only have 1Gbps network speeds. If your network speeds will never go beyond 1Gbps or you have no multi-gig NICs, certified Cat5E will be just fine. BTW, Cat5E can achieve 10Gbps at short lengths of less than 10m (again, if you have the NICs to support it), but this is outside of their certified specification. Finally, any wired connection (whether it's via ethernet, fiber, coax) will always be more reliable and consistent in speeds than any WiFi solution. So if you have the opportunity to run ethernet, you should. If you absolutely can not, then you'll have to settle for something else that might not be as reliable and consistent in speeds.
If you plan to use every available cable and end with the tools you've already bought, proceed confidently. This setup is future-proof. However, I sense the original poster likely just needs one quick run. A ready-made quality cable (Cat5E or Cat6) that matches the required length saves a lot of time, effort, and extra tools—something they probably won’t need again.
I usually advise against cutting your own cables because there were many issues with that. It’s hard to tell which RJ45 plugs are reliable, and most crimping tools turn out to be poor quality. If you end up spending a lot on good crimping gear and buying connectors, it adds up quickly—especially if you’re just handling a few cables.