Do you have a USB3 network adapter (using the Realtek 8156 chipset) that doesn't work well in Linux? Well, the kernel has included the upgraded Realtek drivers for awhile now, but for some reason it needs additional udev rules to load correctly. It's a pretty simple fix and results in dramatically improved bandwidth (full duplex ~ and half duplex ~ ), and functions properly with the correct driver. Link to my blog post which includes the contents of the udev rules you need: Here's the exact adapter I'm using for my cluster - I chose it because of the price and form factor, there are other options if you prefer USB-C or longer cables. My Discord Server, where you can chat with me or suggest topics if you'd like: If you find my content useful and would like to support me, feel free to here: Timestamps: 00:00 - Introduction 00:41 - The Problem 02:56 - The Solution 04:40 - Testing with iperf 05:58 - Testing Jumbo Frames 08:15 - Conclusion Some links to products may be affiliate links, which may earn a commission for me. #networking #realtek #linux