@Marodeur64 Hi, as you can check from our official website, our official driver for the product doesn't support Linux system.

 https://www.tp-link.com/en/home-networking/adapter/archer-t3u/#specifications& https://www.tp-link.com/en/support/download/archer-t3u/#Driver

But we found a publish driver for this product which may work with Linux system. 

https://static.tp-link.com/2018/201808/20180822/T4Uv3_T3Uv1_Linux   driver from chipset manufacture.zip

However, we haven’t tested the above driver and Linux is an open source platform, it may have some unknown issues, we cannot guarantee the performance and stability and won’t provide further support. We suggest you can find on some reliable third-party sites like Github.

You can refer to the instruction to install it to check if it works. https://static.tp-link.com/2018/201805/20180508/Installation%20Guide%20for%20Linux.pdf