Nice cord. Use the 100ft cable version to connect to my home office through the house! Use it on an Early 2015 MacBook Pro with a Thunderbolt adapter. Get speeds of up to 500Mbps. It was slow at first when we plugged it into my old Mac monitor. Switched to zip and problem solved! We're postponing the purchase of a new laptop until the release of the 2021 MacBook Pro with M2. This cord combined with the zipper will hopefully get me through the next few months. We host live broadcasts and lots of video calls. If it's slow, be sure to check your hardware before blaming the cable!