One of the fastest USB-C to Ethernet adapters I’ve come across is the OWC Thunderbolt 3 10G Ethernet Adapter.  Disclosure: ZDNet may earn an affiliate commission from some of the products featured on this page. ZDNet and the author were not compensated for this independent review. While the hub can output at speeds of 10GBASE-T this does require everything else in the network to also be up to the task and does require hardware that can support this. Also, the cabling has to be up to scratch. For 100 meter spans, CAT5e or CAT6A cabling can be used, while CAT6 cabling is good for 55 meters. The OWC Thunderbolt 3 10G Ethernet Adapter is compatible with any PC or Mac with a Thunderbolt 3 port.