TP-Link AC1300 USB WiFi Adapter (Archer T3U) - 2.4G/5G Dual Band Wireless Network Adapter for PC Desktop, MU-MIMO WiFi Dongle, USB 3.0, Supports Windows 11, 10, 8.1, 8, 7, XP/Mac OS X 10.9-10.14

I bought this as my home Powerlines are about 100mbps short of the target, and all wifi devices are able to get almost the full speed. At first it connected by plug & play but was getting <100mbps when I was expecting around 350. After installing the drivers from the website, I was able to get the full speeds, so I tried a download. At this point, the download speed capped and started falling dramatically. Then when I ran another speed test, it was only picking up around 50mbps.All of this while being connected to a working USB 3.0 port.So in summary, it can pick up the speeds, but when you start to download anything, it will simply fail and become useless (in my case).