[trustingtrust]

this is a very common chip that’s sold everywhere for as low as 4$ for that entire dongle at retail. If you touch the controller, at full speed it gets crazy hot on this one. The part I struggled with was that I was trying to install openwrt when raspberry pi 4b was new and use this as the wan port as my isp was limited to 40mbps. But the chip got so hot that eventually I gave up after putting on a tiny heatsink because the plastic casing simply offers no heat output. Mine didn’t have this SPI chip on it so both Linux and openwrt (with drivers) worked fine and it showed up as an additional Ethernet port in ip link. The usb cables are so thin I couldn’t leave it just like that cause at any point it would break and it eventually did break I think I don’t know where it is now. I ended up getting a tp link usb adapter eventually but in general usb Ethernet for anything other than just quick management of some console is not recommended if you want to do serious routing in my experience. The tplink one comes with Realtek which is just ‘okay’. Pcie Ethernet intel cards offer cpu offloading. I’m not sure if that can be achieved over usb. Heat is another problem as the casing is the limitation on it which is not a problem on pci cards or motherboards.