This is Plug and Play on Linux (tested with 5.4 and 5.10 kernels). Works fast enough. and i3 machine via two switches with a client on pi4. There was some discrepancy, but the results in this area are: Full duplex, around 870 upstream and 840 upstream (Mbps) Half duplex, around 940 upstream and 860 upstream (Mbps) Lsusb reports this as: 0bda:8153 Realtek Semiconductor Gigabit Adapter Ethernet Corp. RTL8153 I only removed the star because I wanted LED displays. It works, so I ordered a second one.
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