Something I highly recommend avoiding (though it may look tempting) is the TB16 thunderbolt dock from dell. There is something really screwy with the USB controller in that device, the ETH is on the USB hub and corrupts Ethernet frames, under Linux you can force disable hardware offloaded CRC checksumming as a workaround, but still the USB devices that are directly connected can just stop functioning. It also has the…
The connector is a two inch lever just waiting for something to break it off.