comments:
newtekie1 posted on r/homenetworking1w
They make them up to 50ft. I have one giving me 10Gbe as we speak. However, I believe they get slightly thicker in lengths over 20ft. They also don't meet the CAT6a spec like the shorter ones. https://www.amazon.com/Monoprice-Cat6-Ethernet-Patch-Cable/dp/B07JFR4DF1/